[sage-support] Semisimple Lie algebra generators in Sage? (physics edition)
I am sorry if this question has been asked before.
Is there a way to get the fundamental Lie algebra generators in sage (those
that physicists use, eq. the Paule matrices, Gellmann matrices and so
forth)?
The only thing I can find in the documentation is the generators in the
Chevalley basis, but they do not satisfy the orthogonality condition
tr(T^aT^b)=\delta_{ab}.
I am looking for the generators for all the semisimple Lie groups
(A_n,B_n,C_n,D_n,G_2,F_4,E_6,E_7,E_8).
The reason i need this is because I am trying to verify some calculations
done with the birdtrack method for Lie algebras.
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Re: [sage-support] Re: Text representation of number fields with embeddings
Thanks, Volker. I must say I find the K.x syntax makes me feel a bit
uneasy. Is there a way to do
sage: x = polygen(QQ)
sage: K.x = NumberField(x^2 + x - 1/2, embedding=0.366)
in straight Python?
On 28 July 2013 04:13, Volker Braun vbraun.n...@gmail.com wrote:
The K. = ... syntax injects a names=(...) keyword argument on the right
hand side:
sage: preparse('K.k = f()')
K = f(names=('k',)); (k,) = K._first_ngens(1)
So what you probably want is:
sage: x = polygen(QQ)
sage: sage_eval(NumberField(x^2 + x - 1/2, embedding=0.366,
names=('x',)), locals={'x':x})
Number Field in x with defining polynomial x^2 + x - 1/2
On Saturday, July 27, 2013 5:53:52 PM UTC-4, Emil wrote:
Hi, I'd like to be able to save number fields with embeddings as text
strings, so that they can be instantiated at a later date, as well as being
human readable. So, I'm trying to store the command used to create such a
field, and use sage_eval on it.
sage: x = polygen(QQ)
sage: K.x = NumberField(x^2 + x - 1/2, embedding=0.366)
The above works, but the following gives an error:
sage: K.x = sage_eval('NumberField(x^2 + x - 1/2,
embedding=0.366)', locals={'x': x})
--**--**
---
TypeError Traceback (most recent call
last)
/Users/ev/Projects/flagmatic/**ipython console in module()
TypeError: sage_eval() got an unexpected keyword argument 'names'
Does anyone know how to fix this? Thanks!
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[sage-support] Text representation of number fields with embeddings
Hi, I'd like to be able to save number fields with embeddings as text
strings, so that they can be instantiated at a later date, as well as being
human readable. So, I'm trying to store the command used to create such a
field, and use sage_eval on it.
sage: x = polygen(QQ)
sage: K.x = NumberField(x^2 + x - 1/2, embedding=0.366)
The above works, but the following gives an error:
sage: K.x = sage_eval('NumberField(x^2 + x - 1/2, embedding=0.366)',
locals={'x': x})
---
TypeError Traceback (most recent call last)
/Users/ev/Projects/flagmatic/ipython console in module()
TypeError: sage_eval() got an unexpected keyword argument 'names'
Does anyone know how to fix this? Thanks!
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[sage-support] Getting __name__ (or similar) of load-ed script?
I'd like to know if it's possible to get the filename of a script that's been run using the load or attach command at the sage: prompt. If I insert a print __name__ in the script I just get __main__. I know __name__ isn't the right thing, since I'm not dealing with an imported Python module... But it seems like it could be possible that there is a builtin that gives what I want, but I can't find it... Thanks! -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
Re: [sage-support] Re: Getting __name__ (or similar) of load-ed script?
Thanks Leif. inspect.getfile() doesn't seem to do what I want. The situation is that I have a number of scripts, s1.sage, s2.sage, etc, and I'd like them to be able to write to a '.js' file with the same name as their filenames, e.g. s3.sage would write to s3.js, etc. I thought I might be able to do something like open(__name__ + .js, w)... On 9 June 2013 15:43, leif not.rea...@online.de wrote: leif wrote: Emil wrote: I'd like to know if it's possible to get the filename of a script that's been run using the load or attach command at the sage: prompt. If I insert a print __name__ in the script I just get __main__. I know __name__ isn't the right thing, since I'm not dealing with an imported Python module... But it seems like it could be possible that there is a builtin that gives what I want, but I can't find it... In Sage, there is attached_files() which gives a list of the filenames. Not sure whether there's some function for just loaded files; doesn't seem Sage would keep track of them. ... but I probably misread your question. If the loaded script you want to get the filename of defines some object foo, you can use inspect.getfile(foo). (Probably see also sage/misc/sageinspect.py.) -leif -- () The ASCII Ribbon Campaign /\ Help Cure HTML E-Mail -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscribe@**googlegroups.comsage-support%2bunsubscr...@googlegroups.com . To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/**group/sage-support?hl=enhttp://groups.google.com/group/sage-support?hl=en . For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- You received this message because you are subscribed to the Google Groups sage-support group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[sage-support] Re: Saving sws files in VirtualBox lab situation
On Thursday, July 19, 2012 5:05:33 AM UTC+2, kcrisman wrote: On Wednesday, July 18, 2012 3:40:41 PM UTC-4, Volker Braun wrote: You can just run VBoxManage startvm Sage-5.0 from a script and it'll fire up that Virtual Machine. Thanks. I assume that it's not possible to have Sage start with just the one click from a pre-installed VM, at this time? (Assuming we don't use Emil's solution of the self-installing Linux partition!) I am not into the details of building VMs and integrating them into Windows atm, but I think this would be possible with a similar command to Volkers VBoxManage startvm. There is also the command VBoxSDL, which will start the VM window without the VBox control window, and VBoxHeadless, which will start the VM in the background. There could be a windows batch script that starts a sage vm (CLI only, running the server) in headless mode, shows an appropriate message, waits for it to start up and then opens the windows default browser with the sage notebook. The mentioned self installing Linux Partition is unrelated to this topic, because this Windows exe installer of the Live CD OS would require the user to reboot the machine and startup Linux ( For completeness: it is not a linux partition but an automated frugal install to NTFS, where the linux OS is inside a single file on the Windows partition (similar to the popular Ubuntu - WUBI install). About the long startup time: In reality it is not really necessary to have that, because lots of the time consuming stuff during bootup is not necessary when starting a linux in a fixed virtual environment. E.g. the whole hardware detection stuff could be minimized. Of course this would mean to use a customized boot script inside the initrd of the vm ... greetings emil Here's one user's comments: ++ 1) Fire up Virtual Box (only one click if there's an icon on the desktop, which I THINK we can have happen for everyone). 2) Fire up Sage inside Virtual Box (only one click, I think). 3) Be told that the mouse doesn't work anymore (even though it demonstrably does), and have to click okay. 3) Wait a LONG time (about 1.5 minutes) while lots of scary stuff is printed on the screen, including Booting 'Fedora Linux, etc. It's actually worse when there is a blank, black wondow, and nothing else is happening. During that endless 90 seconds, I had to click okay three separate times when being told again that mouse pointer integration was not supported. 4) now we have a normal Sage notebook screen (see attached screenshot1), whew. ++ Fine for personal use, but not so great for a lab. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] IntegerVectors question
On 18 May 2012 18:48, Emil emi...@gmail.com wrote: Looking at the code, the cardinality() is done sensibly for IntegerVectors_nkconstraints, but not for IntegerVectors_nk, which is what will be used by default. It should be a simple patch (I can do it if no-one else wants to) - as the code is essentially already there in IntegerVectors_nkconstraints. Actually, it looks like the sensible thing to do is to get rid of IntegerVectors_nk entirely and just have IntegerVectors_nkconstraints. Perhaps someone more familiar with the code could say if this looks like the right thing to do. Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Making a copy of a MixedIntegerLinearProgram
Hi Nathann, Thanks for writing the MILP class - it works very well. Now, I can do: x = lp.new_variable() Is there any way to do something like x = lp.get_existing_variables() ? I'm working on some graph theoretic stuff: I'm solving two LPs for each graph, for as many graphs as I can. - Emil. On 15 May 2012 08:00, Nathann Cohen nathann.co...@gmail.com wrote: By the way, could I ask you what lead you to create and solve many LP ? I mean, what are you solving which requires you to do that ? ^^; Nathann -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Making a copy of a MixedIntegerLinearProgram
Next issue is that the Gurobi backend doesn't support the copy: AttributeError: 'sage.numerical.backends.gurobi_backend.GurobiBacke' object has no attribute 'copy' Any idea how much work this would be to do? (I can now do what I wanted to do before, at least with GLPK.) Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Making a copy of a MixedIntegerLinearProgram
OK I'll take a look :) On 15 May 2012 21:55, Nathann Cohen nathann.co...@gmail.com wrote: Hell Emil !! Any chance you could make a patch? :) (I'd volunteer myself, but I would probably mess it up!) H I could, but this patch is so local that it really is an ideal occasion to write your first patch... Are you sure you do not want to give it a try ? It is fun to be a developper, you will feel like Sage becomes your home directory, and everybody will throw rocks at you you create new bugs.. And all all the while you will be having fun :-D Nathann -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Making a copy of a MixedIntegerLinearProgram
I would like to solve a large number of very similar linear programs. More specifically I would like to be able to 1) Create a MixedIntegerLinearProgram, and add some constraints. 2) Keep this MILP somewhere. 3) (Repeated many times) Take a copy of the saved MILP, add a few more constraints specific to this problem instance, and solve it. The difficulty I have is that I am unclear how to add new constraints that include previous variables. Suppose I do lp = MixedIntegerLinearProgram(maximization=True) x = lp.new_variable() Then I do: nlp = copy(lp) x = nlp.new_variable() The variable 'x' now seems to contain different variables. So I cannot add any constraints that use the existing variables. Or is there some way to do this? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Group action
One thing to watch out for is that the generators returned by automorphism_group contain symbols that may not be the actual vertices. I realised this once after several frustrating hours of bizarre results from my program. I'm not sure if this is still the case in recent versions. Emil On 15 May 2012, at 00:04, Dima Pasechnik dimp...@gmail.com wrote: On Tuesday, 15 May 2012 01:02:46 UTC+2, Dima Pasechnik wrote: On Monday, 14 May 2012 16:57:40 UTC+2, Nathann Cohen wrote: Hellooo everybody !!! I would like to play with groups in Sage but I do not know how. I actually get my groups from a graph in the following way : sage: g = graphs.PetersenGraph() sage: ag = g.automorphism_group() sage: type(ag) class 'sage.groups.perm_gps.permgroup.PermutationGroup_generic_with_category' What I would like to do with this group is to consider it as a group action on my vertices and compute the orbits of some *sets* of vertices. Indeed, the method ag.orbits() would give me the list of all orbits of my vertices, but I would like to compute the orbit of a Set of vertices, that is all sets of the form gg * my_set for gg in ag. Is there any way to achieve it with Sage ? Well, you can call GAP, e.g. as follows: sage: gap(Orbit(+str(ag._gap_())+,[1,2,7],OnSets);) [ [ 1, 2, 7 ], [ 1, 2, 3 ], [ 1, 6, 9 ], [ 2, 3, 4 ], [ 3, 4, 10 ], [ 1, 6, 8 ], [ 3, 4, 8 ], [ 4, 9, 10 ], [ 4, 7, 9 ], [ 5, 8, 10 ], [ 2, 5, 7 ], [ 5, 6, 8 ], [ 3, 5, 8 ], [ 4, 6, 9 ], [ 5, 7, 10 ], [ 5, 7, 9 ], [ 6, 7, 9 ], [ 3, 6, 8 ], [ 1, 6, 10 ], [ 2, 7, 9 ], [ 1, 2, 10 ], [ 2, 3, 8 ], [ 6, 8, 9 ], [ 1, 5, 10 ], [ 2, 3, 7 ], [ 1, 4, 10 ], [ 5, 7, 8 ], [ 3, 4, 9 ], [ 4, 5, 10 ], [ 1, 2, 6 ] ] sage: PS. it should not be hard to expand the ag.orbit method to incorporate the action type... Thaank youu Nathann -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: Fwd: [sage-support] Re: including sage library
I would also appreciate some clarification on this issue. I've written a module which is not currently intended to be part of Sage (although perhaps could be at some point). In my .py files I have not imported from sage.all, but I've imported the things I need, in the same way that the Sage source files do. I thought that was the right thing to do. So, should my module always import from sage.all ? What if I ensure that all my imports occur in the right order? Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Importing Cython .so module
On 19 April 2012 07:20, Robert Bradshaw rober...@math.washington.edu wrote: It might be distutils. It might be Cython. It might even be Sage or Python. But without knowing exactly how you're trying to compile/install your package, it's hard if not impossible to give any specific recommendations on what to change to get the result you want. Thanks Robert, but I've actually just managed to accidentally fix the problem! I added an ext_package='...' declaration to the setup.py file, which broke things, but when I removed it and reinstalled, everything worked! I don't know what to make of all this. I'd really like to see more documentation on how to distribute packages for Sage that are not intended to part of Sage proper. I can't volunteer for this myself (at present) as I barely understand how things work and have only managed to get something working by accident. Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage installation on windows : browser cannot connect
If I make it bridged, what is the IP address I'd use? stop the sage notebook server (with Ctr-C) and type ifconfig. This should show you your IP address on the network. It should also show in the startup message of the notebook server. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Importing Cython .so module
Hi Robert, thanks for taking an interest in my problem! I've been unwell, and could not respond sooner. I can't put an __init__.py file in the top-level /site-packages directory as far as I am aware, and I'm not sure that would be a sensible thing to do to my users... I think my original email specifies the problem clearly: I have a package I would like to distribute, that Sage users can install using distutils, and I want to be able to import a Cython-generated extension without it polluting the global namespace. I suspect this is nothing to do with Cython, or Sage, but to do with Python or disutils, but I am not sure... If someone could at least clarify what area this problem fits into that would be a great help because I can then go to the appropriate forums. Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Importing Cython .so module
If no-one can answer this question, does anyone have an idea of another forum where people may know the answer? Thanks! -Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Importing Cython .so module
On 7 April 2012 01:14, Maarten Derickx m.derickx.stud...@gmail.com wrote: Does executing: import foo give what you want or is your problem different? import foo doesn't do much, as foo/__init__.py is empty. I have adopted the Sage-like behaviour of having an all.py file which has from bar import * statements. The issue is that all.py contains lines like: from bazz import * from bar import * For some reason, the line corresponding to the bar.so file imports things into the top-level of the name space, rather than as foo.bar.. I can't find anything in the Cython docs or anywhere else about how to stop this. The Sage Cython modules seem to be imported into the correct places in the namespace hierarchy, so it must be possible... Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Importing Cython .so module
Hi, I have a Python directory in site-packages called foo. I do: sage: from foo.all import * Now, foo.all imports several things from the foo directory, including a .so module. It contains lines like: from buzz import * from bazz import * from bar import * Now, all the objects imported have types like foo.buzz.Blob foo.bazz.Thing etc Except for the .so module, bar.so, whose objects have types like bar.Bar Now, I'd really like this to be foo.bar.Bar Is this possible? Why does 'bar.Bar' always get put in the top-level of the name space? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] importing .so files
Hi, I have a Python package, 'foo' that I can install with distutils,
into Sage's site-packages directory. It contains a Cython file,
'bar.pyx'. Now, if in the setup.py file, I have
Extension('bar', ...)
then everything works fine, except that 'bar.so' gets put in
site-packages, rather than site-packages/foo. Everything works, and
the python files in site-packages/foo can do import bar.
However, if I have
Extension('foo.bar', ...)
in setup.py, then 'bar.so' gets put in site-packages/foo, which is
what I want, but now nothing can import it... I was wondering whether
LD_LIBRARY_PATH or something needs to be set?
I'd like to be able to distribute my package, but I want everything
contained in site-packages/foo Thanks,
Emil
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Re: [sage-support] Re: importing .so files
On 3 April 2012 17:06, Dima Pasechnik dimp...@gmail.com wrote: Probably. You can see what Sage does in this regard by looking at the value of LD_LIBRARY_PATH in Sage shell (i.e. when you run sage -sh) Doing this reveals $LD_LIBRARY_PATH to contain /usr/local/sage/local/lib/R/lib:/usr/local/sage/local/lib/openmpi:/usr/local/sage/local/lib/ None of these directories contain .so files, so I guess sage's python cannot be finding the .so files using this variable. I've been doing a bit more experimenting, and it seems to be using sys.path. If I append the directory $SAGE_ROOT/local/lib/python2.6/site-packages/foo then I can import bar. However, it is imported as bar, not foo.bar. Is there any way to make it import as foo.bar ? Also, I'm confused why .py files in the same directory cannot import it, as I thought the current directory is always searched. I'm extremely confused about all this Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: importing .so files
Ah.. my current working directory had a foo/ directory, which was causing everything to go wrong, because it was trying to get things from there instead of site-packages/foo. The main remaining problem is how to get the Cython extension class foo.bar.Bar to appear as foo.bar.Bar instead of bar.Bar. Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Best way to develop Sage packages?
Thanks for everyone's help. I decided to make it a package that can be
installed like:
sage -python setup.py install
My setup.py is as follows (except I changed the name of the package).
I arrived at its contents by trial and error, so if anyone could have
a quick look at it to see if there is anything really silly, then that
would be appreciated! -Emil
--
import os
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
if not os.environ.has_key('SAGE_ROOT'):
print ERROR: The environment variable SAGE_ROOT must be defined.
sys.exit(1)
else:
SAGE_ROOT = os.environ['SAGE_ROOT']
SAGE_LOCAL = SAGE_ROOT + '/local'
SAGE_DEVEL = SAGE_ROOT + '/devel'
setup(
name='MyPackage',
packages=['mypackage'],
version='1.0',
cmdclass = {'build_ext': build_ext},
ext_modules = [
Extension('mypackage.thing', sources=['mypackage/thing.pyx'],
include_dirs = [SAGE_LOCAL +
'/lib/python/site-packages/numpy/core/include',
SAGE_LOCAL + '/include/csage',
SAGE_DEVEL + '/sage/sage/ext',
SAGE_DEVEL + '/sage'],
library_dirs = [SAGE_LOCAL + '/lib'])
]
)
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Re: [sage-support] Re: Best way to develop Sage packages?
Thanks! Actually, I have a little problem. In setup.py I have:
Extension('thing',
sources=['mypackage/thing.pyx'],
include_dirs = [SAGE_LOCAL +
'/lib/python/site-packages/numpy/core/include',
SAGE_LOCAL + '/include/csage',
SAGE_DEVEL + '/sage/sage/ext',
SAGE_DEVEL + '/sage'],
library_dirs = [SAGE_LOCAL + '/lib']
Now, thing.pyx has a class Thing, which in Sage is then called
thing.Thing. However, I would like it to be called
'mypackage.thing.Thing'. Is this possible?
(If in the above code I change the first argument of Extension to
'mypackage.thing', I am unable to import it at the sage: prompt -
although thing.so gets put inside the site-packages/mypackage
directory instead of in its parent.)
Emil
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Re: [sage-support] Re: Best way to develop Sage packages?
On 31 March 2012 12:47, Volker Braun vbraun.n...@gmail.com wrote: If it is of interest to an academic community then it probably should be part of Sage ;-) I'm not against it being incorporated into Sage at some point, but right now I'd rather keep it as a separate package that people can install, and import if they want to use it; but if they don't it will not pollute the name space (It contains classes with quite generic names like Problem and Construction.) From what I can tell, I can use Python distutils, and I can get the SAGE_ROOT from environment variables, so that I can set the include_dirs for the Cython compilation. Then I just give people a tar ball and tell them to run sage -python setup.py. Does this sound a good strategy? Or would it be best to distribute an .spkg ? Can .spkg's install stuff into the site-packages directory outside the sage folder? Also, is there any documentation on sage -pkg? Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Best way to develop Sage packages?
Hi, I'm working on a Sage package. I'm new to Sage, and learning as I go along... My source code is a mixture of .py and .spyx files, that (until now) I have been attaching() at the sage: prompt. This seems to work quite well. However, I'd like to do things in the proper way. So I made a directory in SAGE_ROOT/devel/sage/sage/, created __init__.py, all.py, and updated the module_list and setup.py files. Then I can build the source with sage -b. This works ok as well. I was wondering, is there a way that I can rebuild the source from the sage: prompt, for example using %upgrade? I get the following message when I try that: Delete the following files manually (and rerun %upgrade) if you need a full upgrade: /Users/ev/.sage/ipython/ipy_user_conf.py My questions are: 1) do people develop sage in this way, or is it more normal to just attach() things? 2) is it possible to use %upgrade to rebuild by source from the sage: prompt? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Best way to develop Sage packages?
Pedro, John - thanks for your replies! It is a shame that you can't recompile bits of Sage from within Sage, but I guess there are good reasons for this. My package has the following characteristics: 1) it uses lots of Sage things 2) it is a mixture of Cython and Python 3) probably shouldn't be made part of everyone's Sage, but it would be good if people could install it easily, as it will be of interest to a certain community. Because of (3), I would lean towards Pedro's idea of using site-packages, however, I have lines like this in my .pyx files: include ../ext/interrupt.pxi So I guess this means that I need to be part of the sage directory structure, rather than being in site-packages? Or could I use SAGE_ROOT or something to always guarantee to be able to find these files? Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage installation on windows : browser cannot connect
Am Mittwoch, 28. März 2012 14:06:31 UTC+1 schrieb Matthias L: Dear group, I've tried to install Sage on Windows 7 following the installation guide linked below. It seems to work until step 4, I get the same console window as shown in the screen shot there (Open your web browser). But if I do so, I can't connect to Sage and receive a 404 error instead. Installation guide http://wiki.sagemath.org/SageAppliance Virtual Box 4.1.10, Sage 4.8 Some ideas? Thank you, Matthias Maybe you try to change the network settings of Virtual Box from NAT to Bridged Adapter. Your VirtualBox session will get an ip adress like any other machine on the LAN. Then you connect to the sage notebook with http://ip-adress:8000 -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: semidefinite programming using csdp -- python import errors
Precision could be lost in the double-string-double translations (?). why would you think there is such a translation? I'm referring to using the stand-alone CSDP. You have to write your matrices, and read the solution matrix, as a text file. pycsdp avoids this, as would a Cython interface. Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: semidefinite programming using csdp -- python import errors
On 26 March 2012 17:37, Dima Pasechnik dimp...@gmail.com wrote: On 2012-03-25, Emil emi...@gmail.com wrote: I've also been using CSDP from Sage lately. I am calling the stand-alone program, rather than using the Python interface (which isn't a very good solution). why? Is it buggy? Well, you can't stop/pause/save intermediate solutions. Changing options means writing to a parameters file. Precision could be lost in the double-string-double translations (?). I was wondering whether using pycsdp is the right way to go though. Wouldn't it be best to write a small Cython wrapper for the C library? (I was planning at some point to do this myself.) well, if pycsdp works, then why you might want another interface? I don't know, i was only asking a question! (I guess I looked at the code and thought that it would be lot simpler in Cython, but as you say it is already written in the way it is...) Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: semidefinite programming using csdp -- python import errors
I've also been using CSDP from Sage lately. I am calling the stand-alone program, rather than using the Python interface (which isn't a very good solution). I was wondering whether using pycsdp is the right way to go though. Wouldn't it be best to write a small Cython wrapper for the C library? (I was planning at some point to do this myself.) Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Changing basis of a symmetric matrix
The current project I'm working on needs to do a lot of matrix multiplications, of the form B * D * B.T where D is a symmetric positive semi-definite matrix with rational entries, B is a matrix with rational entries, and B * B.T is a diagonal matrix (not necessarily the identity - i.e. the rows are orthogonal, but not orthonormal, if those are the correct terms). I was wondering if Sage will make use of the specific set-up here to speed up the matrix product? And if not, is there a faster way to do it? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Re: Sorting a list of number field elements
Hi David, thanks for your reply! I was wondering if there is a way to automatically get the desired embedding into AA. If I do: sage: Q=NumberField(x^2-2,'x',embedding=1.41) sage: x=Q.gen() sage: float(x) 1.4142135623730949 Then, I've made a field with an embedding, so really there should only be one way to embed this into AA, as this way has already been chosen. However, we still get two ways: sage: Q.embeddings(AA) [ Ring morphism: From: Number Field in x with defining polynomial x^2 - 2 To: Algebraic Real Field Defn: x |-- -1.414213562373095?, Ring morphism: From: Number Field in x with defining polynomial x^2 - 2 To: Algebraic Real Field Defn: x |-- 1.414213562373095? ] How can I programmatically chose the right one? It does seem to me that I can't be the only one to expect that sorted(...) will work on lists where the members all belong to fields with embeddings... Currently, not only does this not work, but no error message is produced Do you think it is worth me making a ticket for this? Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Sage container class?
Hi, I was wondering if there is anything like a dictionary or container class, that inherits from SageObject, and to which I can add arbitrary SageObjects? I would like to be able to do something like: sage: D = SageDictionary() sage: D[matrix1] = M sage: D[bound] = x sage: s = D.dumps() Then I can make use of the dumps/loads facilities without having to subclass SageObject (which would entail me having to import my class, rather than just include it in an attach()ed file, which I'd like to avoid). Alternatively, if I just make a dictionary of SageObjects and pickle, would that work? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
Re: [sage-support] Sage container class?
On 21 March 2012 23:21, Mike Hansen mhan...@gmail.com wrote: A normal dictionary should work: Hi Mike, thanks! I see from a quick look at the source that, on non-SageObjects dumps() does: cPickle.dumps(obj, protocol=2) I am a bit confused about the relationship between the dumps/loads mechanism and pickling... Does this mean that dumps() will be called on objects that the dictionary contains? (Doesn't pickle use __getstate__ or something like that instead?) Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Sorting a list of number field elements
I have an array of number field elements: sage: [x for x in bounds] [4*x - 1, 10/3*x - 4/3, 4*x - 1, 2*x - 1, 4*x - 1, 4*x - 1, 0] They belong to a field that has an embedding, and I would like to sort them according to their real values. I can do it using float conversions: sage: sorted(float(x) for x in bounds) [-0.26794919243112281, -0.11324865405187112, 0.0, 0.46410161513775439, 0.46410161513775439, 0.46410161513775439, 0.46410161513775439] Or: sage: sorted(bounds, key = lambda x: float(x)) [2*x - 1, 10/3*x - 4/3, 0, 4*x - 1, 4*x - 1, 4*x - 1, 4*x - 1] But, this is a bit messy, and could be imprecise. It would be good if I could just do: sage: sorted(bounds) [4*x - 1, 10/3*x - 4/3, 4*x - 1, 2*x - 1, 4*x - 1, 4*x - 1, 0] But this doesn't appear to work! Is there a way to do this? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Some bugs and some wishes
On 21 Feb., 06:18, Rob Beezer goo...@beezer.cotse.net wrote:
On Feb 16, 1:43 am, Manuel Kauers man...@kauers.de wrote:
7. Nullspace for matrices over finite fields is unreasonably slow
sage: M = MatrixSpace(GF(2^31-1), 1000, 1001).random_element();
sage: %time M.right_kernel();
CPU times: user 165.71 s, sys: 0.01 s, total: 165.73 s
Wall time: 166.20 s
Mathematica does this almost 20 times as fast:
In[5]:= mat = Table[RandomInteger[{0,2^31-1}], {n,0,1000},{k,0,1001}];
In[6]:= Timing[NullSpace[mat, Modulus - 2^31-1];]
Out[6]= {8.98856, Null}
It is the size of the prime here that matters. The kernel of a matrix
is quite fast for small primes, but there is obviously room for
improvement for larger primes. The cutoff is at
sage.ext.multi_modular.MAX_MODULUS == 46341
Timings of Mathematica 6.0 on sage.math:
sage: mathematica_console()
Mathematica 6.0 for Linux x86 (64-bit)
Copyright 1988-2007 Wolfram Research, Inc.
In[1]:= mat = Table[RandomInteger[{0,2^31-1}], {n,0,1000},{k,
0,1001}];
In[2]:= Timing[NullSpace[mat, Modulus - 2^31-1];]
Out[2]= {9.54, Null}
In[3]:= mat = Table[RandomInteger[{0,46049}], {n,0,1000},{k,0,1001}];
In[4]:= Timing[NullSpace[mat, Modulus - 46049];]
Out[4]= {5.06, Null}
Timings for Sage 4.8 on sage.math:
sage: M = MatrixSpace(GF(2^31-1), 1000, 1001).random_element();
sage: %time M.right_kernel();
CPU times: user 209.69 s, sys: 0.11 s, total: 209.80 s
sage: M = MatrixSpace(GF(46049), 1000, 1001).random_element();
sage: %time M.right_kernel();
CPU times: user 0.79 s, sys: 0.00 s, total: 0.79 s
About 6 times faster. How does Mathematica do on finite fields with
more structure?
sage: sage: K.a =
GF(101^2)
sage:
K
Finite Field in a of size
101^2
sage: sage: M = MatrixSpace(K, 1000, 1001).random_element();
sage: sage: %time M.right_kernel();
CPU times: user 89.87 s, sys: 0.06 s, total: 89.93 s
Rob
Hi Rob, you understand more than I do - is this a bug (big step of
time needed for that type of calculation at an rather arbitrary
number)? Should I create a track ticket for that? Do you have also an
opinion on the various other points?
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[sage-support] Re: Some bugs and some wishes
On 16 Feb., 10:43, Manuel Kauers man...@kauers.de wrote:
Hi there,
here are some bugs which may or may not be already known. If they are
new, could you please file them wherever such bugs need to be filed? Or
if they are not bugs but wrong usage, could you explain to me what I
should type instead?
I am still working with version 4.7.1, so some remarks might be obsolete
already. (Sorry about that.)
1. When I have rational functions over a field [or over an integral
domain], I expect that the denominator is made monic [or the content of
numerator and denominator coprime]. This is not always happening. For
example:
sage: R.x = QQ[]
sage: (2*x+4)/(4*x-8)
(2*x + 4)/(4*x - 8) # bad
sage: R.x = ZZ[]
sage: (2*x+4)/(4*x-8)
(x + 2)/(2*x - 4) # good
Although mathematically correct, I consider this as a bug, because not
bringing rational functions to normal form can easily lead to ridiculous
expression swell. For example:
sage: R1.x = QQ[]
sage: R2.y = R1.fraction_field()[]
sage: K = R2.fraction_field()
sage: def canonic(rat):
num, den = rat.numerator(), rat.denominator()
clear = lcm(num.denominator(), den.denominator())
num, den = num*clear, den*clear
clear = map(lambda p: p.numerator().coeffs(), \
num.coeffs() + den.coeffs())
clear = lcm([a.denominator() for b in clear for a in b])
num, den = num*clear, den*clear
x = rat.parent().gen()
t = rat.parent().base_ring().gen()
return rat.parent()(ZZ[t,x](num)/ZZ[t,x](den))
sage: d = K.random_element().derivative(y).derivative(x);
sage: len(str(d))
919274
sage: len(str(canonic(d)))
8371
2. A coercion problem?
sage: K = QQ[x].fraction_field()
sage: R.y = K[]
sage: S = QuotientRing(R, R.ideal(y^2-(x^2+1)))
sage: ybar = S.gen()
sage: S(y) # works
ybar
sage: 1/ybar # works
(-1/(-x^2 - 1))*ybar
sage: S(1/y) # doesn't work
*** output flushed ***
TypeError: denominator must be a unit
3. Another coercion problem?
sage: R0 = QQ['t'].fraction_field(); t = R0.gen()
sage: R1 = R0['x'].fraction_field(); x = R1.gen()
sage: R2 = R1['y']; y = R2.gen()
sage: R = QuotientRing(R2, R2.ideal(y^2-(x+t)))
sage: ybar = R.gen()
sage: ybar^2 # works
x + t
sage: ybar + x # works
ybar + x
sage: ybar * x # doesn't work
*** output flushed ***
NotImplementedError:
sage: ybar*R(x) # works
x*ybar
4. A bug in LCM:
sage: u = QQ['u'].gen(); v = QQ[u].fraction_field()['v'].gen()
sage: pol = ((u^2 - u - 1)/(-1/5*u^2 - u - 1))*v^2 + ((4/9*u^2 -
1/2)/(1/2*u - 2))*v + (2*u^2 - 1/2*u - 1/3)/(-2*u^2 - 5*u - 1/2)
sage: lcm(pol, 1)
*** output flushed ***
TypeError: denominator must be a unit
5. The universe of a factorization cannot be changed if the
factorization happens to be empty.
sage: factor(2).base_change(ZZ['t','x']).universe()
Multivariate Polynomial Ring in t, x over Integer Ring # correct
sage: factor(1).base_change(ZZ['t','x']).universe()
Integer Ring # incorrect
6. Resultants for elements of Quot(ZZ[t])[x,y] crash.
sage: K = ZZ['t'].fraction_field(); t = K.gen()
sage: R = K['x', 'y']; x,y = R.gens()
sage: R.random_element().resultant(R.random_element(), y)
*** Output flushed ***
TypeError: denominator must be a unit
7. Nullspace for matrices over finite fields is unreasonably slow
sage: M = MatrixSpace(GF(2^31-1), 1000, 1001).random_element();
sage: %time M.right_kernel();
CPU times: user 165.71 s, sys: 0.01 s, total: 165.73 s
Wall time: 166.20 s
Mathematica does this almost 20 times as fast:
In[5]:= mat = Table[RandomInteger[{0,2^31-1}], {n,0,1000},{k,0,1001}];
In[6]:= Timing[NullSpace[mat, Modulus - 2^31-1];]
Out[6]= {8.98856, Null}
And here is a wish list of some things that I would find convenient to
have, but didn't find.
1. a method .derivative for quotient ring elements, with which
algebraic functions can be differentiated.
2. a method Factorization.square_free_part
3. a possibility to specify a variable in the method .minpoly for
quotient ring elements. It is confusing that this method takes 'x' as
variable for the minimal polynomial even if there is already an 'x' in
the ground field.
Thanks best regards,
Manuel
*bump*
I some of those are real bugs I could copy over these examples to
tickets on Sage Trac. Or do you want to create an account and file
those tickets yourself which would be preferable?.
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[sage-support] Re: Question about download SAGE
On Feb 14, 5:21 pm, juaninf juan...@gmail.com wrote: Hi everybody Please I want download the SAGE math for fedora-32bits, but i need the file with extension *.tar not tar.lzmaa, because my tar program no have support fot this extension, ... http://ftp.iitm.ac.in/sage/linux/32bit/index.html. You know where are url? to download this, (without make). Do you need to install lzma? (yum install lzma) http://raftaman.net/?p=407 -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Question about download SAGE
On Feb 14, 6:57 pm, Juan Grados juan...@gmail.com wrote: I dont permissions for this in my server Well, if there is no better solution (like asking sysadmin, or somebody uploads other package ) you could build lzma (or successor xz- utils) locally http://tukaani.org/lzma/ -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Windows 7, Virtualbox, can't connect to sage server with Chrome
On 13 Feb., 09:22, Volker Braun vbraun.n...@gmail.com wrote: On Sunday, February 12, 2012 10:56:35 PM UTC-8, emil wrote: If you want to use the multiuser sage server and access it from other computers on the LAN then you need bridged adapter and connect to the IP of the VM (there should be a green splash window on the bottom with the IP adress) But before you ever set the network adapter to bridged you must change all passwords for all accounts in the virtual machine. Emil, are all logins disabled in your VM? Well, I did quite some thinking how to handle this when made it. Right at the moment loggins are not disabled but all servers (ssh, ftp) are off by default. Passwords for the accounts are not published (my defaults are like strong 20 char passwords). sshd is started together with the sage server and at this same moment a new set of encryption keys is generated (so it would be no use for some cracker to sniff the keys from the published iso). It is stated in the docs of the VM, that one should change passwords before using the sage server. The sage admin password is also not set and is asked for at first run of the notebook or the server. So if the password is not changed one still would have to crack those unknown strong passwords to gain ssh access. So I am no security expert, and if anyone points out a loophole to me I am thankful. Please bear in mind that this was like a first attempt to provide all that functionality in that 500 MB download and there will be rough edges (I am really no pro sysadmin, most of it is my first contact with this stuff). When creating it I studied the docs by Dan Drake and Jason Grout in detail and tried to implement it the best I could. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Windows 7, Virtualbox, can't connect to sage server with Chrome
On 13 Feb., 23:19, Volker Braun vbraun.n...@gmail.com wrote: On Monday, February 13, 2012 12:42:14 AM UTC-8, emil wrote: Right at the moment loggins are not disabled but all servers (ssh, ftp) are off by default. Passwords for the accounts are not published (my defaults are like strong 20 char passwords). Thats fine as long as you don't use MD5 for password hashes (no distribution past ~2008, I guess). But its security relies on you never handing out the password to anybody, so I don't understand why you don't disable logins directly if you want to make the VM a sealed box. No, I don't know which algorithm, but clearly not MD5 I published this system as beta, so I thought for easy solutions for some features. Sure, one could disable logins. But then there should the possibility of a remote access to the VM via ssh. For a testing system I thought it is easier to type passwd than to explain how to edit sshd configuration file or host.deny/host.allow files. It is stated in the docs of the VM, that one should change passwords before using the sage server. Well, this was a bad formulation by me. You have to change passwords to make remote logins to the VM via ssh. You need not change passwords to use the sage server. However if you are very paranoid you can of course change the passwords anyway. This is the complete docs: http://boxen.math.washington.edu/home/emil/doc/html/en/relase-notes-slvms-b.htm.htm I think I got it right there... Well if you don't hand out the password then that would be difficult to do, non? To change passwords is easy since you have a root desktop from the vm. course you can always modify a VM that is running on your computer but its not exactly a friendly process for new users ;-) Have you ever run it? I allow to disagree, even if it would be necessary to set passwords for using the server - which it is not. A click on a launch icon is EXTREMLY userfriendly compared to setting up such a sage server from scratch. Lots of what I put into it is MORE userfriendly than other available systems. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Windows 7, Virtualbox, can't connect to sage server with Chrome
Hey, first report about the combined VBox/Sage installer - great! About the jerky mouse - try to disable mouspointer integration, You will need to use right ctrl-key (or Alt-Tab) to leave the VM window afterwards, but at least it gives a usable mouse. Volker thank you about the NAT/portforwarding network settings... If you want to use the multiuser sage server and access it from other computers on the LAN then you need bridged adapter and connect to the IP of the VM (there should be a green splash window on the bottom with the IP adress) cheers emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
Yes you should be able to connect to the sage server. 1) Shutdown Computer and restart Start VirtualBox Please check that on the right side of your Virtual Box control window, section Networking is set to NAT. start Sage VM In the VM you should get the message that the sage server is running on http://localhost:8000; with this adress you *should* be able to connect to the sage server with your Chrome browser from windows. if this is not the case (maybe some weird firewall problem): 2) check that your sage install is working_ go to the sage VM window Ctrl-C to the command prompt and then cd sage/sage This starts sage with the Command Line Interface. make some easy calculations like 1+1 or other examples from the tutorial. type exit to go back to the Fedora prompt 3) disable Firewall in Windows shutdown/restart VM and try again with NAT settings and localhost: 8000 4) try bridged adapter setting shut down the VM. Change settings in the VirtualBox Control Window/Networking to bridged adapter restart VM Ctr-C to the Fedora prompt ifconfig will give you your network settings, In the second line there is something like inet addr:192.168.2.101 ... write down this number - this is the IP_adress of the VM restart the sage notebook server cd sage/sage -notebook require_login=False open_viewer=False then open your browser in windows and connect to http://IP_adress:8000 -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
I am very glad you had success at last! When you start the sage notebook server you have 'kind of an internet server running on your local machine, which produces html code and listens to your inputs on port 8000. Hence you connect to this server with localhost:8000. When you don't start the VM sage server, there is of course no such server and you get no response. This should be independent of internet connection, this means that you can surf AND use sage the same time in different browser tabs. It should be also independent of the choice of internet browser. Internet Explorer, Firefox, Chrome, Opera should all work, as well as other, less known browser types. Just open the browser and type in localhost: 8000 in adress bar. Cheers emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
On Dec 8, 9:46 am, issacnewton atisunda...@gmail.com wrote: Hi emil it seems that command worked and its trying to start web page. I have taken the snapshot of thathttp://www.picscrazy.com/view/1QHj and it just remains at that point. and if i go to that localhost:8000 address, my chrome gives the message that This webpage is not available any suggestions ? Urgh, rather weird picture service you have there - anyway ... You are on the right track - can you start a server on the *host- system* -i.e. windows and connect to the sage server at localhost: 8000? The error messages you see indicate that it couldn't start a browser on the guest, but that is not needed. If there are any further problems, please restart the VM and the proceed following the Readme.txt http://www.sagemath.org/mirror/win/README.txt section: Using the Sage Notebook = take care emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
Maybe type sage/sage -notebook if that doesn't work just restart the virtual machine Useful reading: http://www.ee.surrey.ac.uk/Teaching/Unix/unix1.html -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
I am trying to set up sage using vitualbox. What base memory should I set in virtualbox for the sage ? While setting up, I assigned 1024 MB base memory. Later the Virtualbox keeps reminding me that base memory is more than 50 % of total memory (1.74 GB) and there might be problems. If you don't have very memory intensive applications which you perform in windows xp while running sage vm with 1 GB you should be fine. The best split between VM and host system depends on the actual load (i.e. what calculation you do in sage and what applications run in parallel in windows). I also don't know how to change the base memory in Virtualbox ? if you start the Virtual Box GUI on the right side is the Category System. You can change base memory easily with a slider. So please let me know what base memory should be set have you read the README.txt? Quote: Requirements This can be used on any operating system that supports the free VirtualBox player, for example Microsoft Windows. Your computer must have at least 2.5 GB (!) of free disk space and at least 512 MB of RAM. So for normal sage operation you should be fine to set the VM to 512 MB best emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: why is this contour integral wrong?
Applying expand(ratsimp( )); to your %o15 one can obtain Dan's result. The problem is that the integral should not depend on the center of the circle containing the pole. It looks like maxima bug (?) Sometimes ago there was an example of failing complex calculations on ask.sagemath.org http://ask.sagemath.org/question/839/unexpected-behavior-of-log-in-complex-plane I don't know if this is in any way related or was followed up with a bug report upstream or a ticket, but maybe it is related and should not be overlooked. best emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
On Dec 6, 3:12 pm, issacnewton atisunda...@gmail.com wrote: thanks emil. i was able to change the base memory and i set up the system to start in sage shell. i get to the sage prompt after typing ./sage but i can't do any math stuff there. i get the following error. WARNING! This shell install was built on a machine that supports instructions that are not available on this computer. Sage will likely fail with ILLEGAL INSTRUCTIONS errors! The following processor flags were on the build machine but are not on this computer. ssse3 So whats happening here ? help me also for this mailing list , can I set up the options so that I get the email notices for the replies to the threads started by me only ? Hmm - this means that you have an older and lower spec processor in your box, which don't has a special instruction set (ssse3). Normally Virtualbox simulates all the hardware, but processor properties are mostly directly mapped to the virtual machine (this has to do with gaining good speed). Sage also tries to use the hardware to the fullest possible, so if sage is compiled from source some parts of it (e.g. low level linear Algebra libraries like ATLAS) are optimized for the processor capabilities. Now it seems that the current virtual image was created on a higher spec machine which had the ssse3 instruction set. Bottom line: the binaries in the VM use some instructions which can not be provided by the host processor. Now I think there are 2 possible solutions: a) It is possible to recompile the problematic libraries. 1) In the VM window stop the running server (I think Ctrl-C should do it). 2) change to the sage root directory: [sage@localhost directory]$ cd [sage@localhost ~]$ cd sage [sage@localhost sage]$ 3) delete the offending packages [sage@localhost sage]$ rm spkg/installed/mpir* spkg/installed/atlas* [sage@localhost sage]$ make This is from Chapter 7. of the Sage FAQ: http://wiki.sagemath.org/faq Now the mpr and ATLAS package should be rebuild rightly with your processor instruction set. b) Use an VM image which was made for lower specs: Maybe you try http://boxen.math.washington.edu/home/emil/VM/sage-lite-vm-a1.ova (412 MB download) Difference: change Network settings to Bridged Adapter Or - if you don't mind to help me with some 'cutting edge' testing, you could try this integrated Windows Exe installer (650 MB) http://boxen.math.washington.edu/home/emil/doc/html/en/Windows_Installer.html It should be mostly clicking on the default values, when it asks to install VirtualBox then just click Cancel since you have this already installed. sorry you have inconveniences and I hope this fixes it. kind regards emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
On Dec 7, 4:52 am, issacnewton atisunda...@gmail.com wrote: Hi emil i tried solution a). It was compiling and building for many minutes and finished at last. after that I typed ./sage and again the same prompt [sage@sage sage]$ appeared and i tried to do ordinary math like 2+2, but it says -bash: 2+2:command not found. so whats problem now ? thanks Oh, thats the Fedora shell prompt. you have to restart sage (the server) first. Type [sage@localhost directory]$ cd You should be in the sage root directory now, restart sage server [sage@localhost ~]$ ./sage .notebook The server should start and you should be able to connect with the browser from your host using localhost:8000 :-) emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: some problem with installation on winxp
You should be in the sage root directory now, restart sage server [sage@localhost ~]$ ./sage .notebook sorry thats a typo, it should be [sage@localhost ~]$ ./sage -notebook actually it should also do if you just shutdown the VM and restart it. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Win 7 64 Host and SAGE/Fedora guest on VMware or Virtualbox
On Dec 5, 9:14 am, Carel van Dam carelv...@gmail.com wrote: I'm doing my masters at the moment and I plan on running sage quite a bit for now, both via the VM and a local linux install. I can try one image a month for you guys (The cap is a bit of an issue), and I'll try break each distro during my coffee breaks :P May be it'd help to setup a page on what to do when X happens :) That sounds great! about the site - it would be an idea to expand http://wiki.sagemath.org/faq#How_do_I_run_Sage_with_VirtualBox.3F there is already a small pool of questions here and also on ask.sagemath.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Win 7 64 Host and SAGE/Fedora guest on VMware or Virtualbox
On Dec 1, 11:42 pm, Carel van Dam carelv...@gmail.com wrote: Hi Mr. Widmann and Mr Braun, Thanks for your responses, sorry my reply has been slow. I'll try out your distro during the week Mr. Widmann, I ran out of cap last month :S. The Read Me I was referring to was both of the Read Me's on the Sage download site. I can't remember which one I'm afraid. As to the *.ovf, I got that by extracting the *.ova file, some old instructions I found on google told me to do that :S I'm now using the OVA's as supplied. In the *.ova, I had er... Sage 4.7.1, the problem still persists, some how the network settings were broken when I played around with the VM router File Preferrences (Ctrl+G) Network Virtual Box Adapter (Select) Edit (Space) make changes applicable to your system. The network settings for the VM as per Mr. Braun's instructions are also to do with it. Since My last e-mail and your replies I got the 4.7.2 ova and the problem seems to have fixed itself I also installed an Open SUSE VM to check I could get the network working with the VM and this seemed to work fine, both using NAT and the Bridged adaptor. Yesterday when I took the PC to another network, that broke the sage VM again. I fixed it this time by deleting the VM and re-importing, you loose your files that way but it atleast gets you running again. I believe the problem is with virtualbox and not the distribution, so thank you for your time spent helping me. I'll keep pocking around a bit, If I find anything that may be of use to some one who reads this mailing list then I'll reply here again, mostly because I've seen this question asked a few times on the web but it's seldomly replied to/solved. regards, Carel Hello Mr. van Dam, thank you for your detailed response. It is very helpful. The developement of the virtual machine image - although the most popular distribution of sage - is still kind of a fringe topic in sage developement. To have more people contributing, even if it is just short feedback about arising problems, could make an considerable impact about the quality of this product (and I explicitly include documentation/troubleshooting as one of the most important things). You are right that using virtualisation has its own tricks and pitfalls. About your problem with the lost net connection: I am shooting in the blue here, but it could be related to an existing MAC adress of the VM and some settings in the /etc/udev folder. Please read here: http://www.linuxquestions.org/questions/debian-26/no-network-on-virtualbox-udev-problem-822023/ https://www.virtualbox.org/ticket/2286 https://forums.virtualbox.org/viewtopic.php?t=7749highlight=udev If the network connectivity is lost I sometimes had success by just going to the network section of the Virtual Box GUI and unselect and reselect the adapter. Sometimes there are other issues - the last days and I installed and uninstalled VMs repeadetly. At one point - network was not working and I had absolutely no clue why - I had to log into my router because the dhcpd server had run out of possible new adresses and I had to increase the available pool - I don't think this was the problem in your case, just to show that there are some hard to find pitfalls. To improve and ease the distribution of the sage VM I built an integrated VirtualBox Sage VM installer the last days. To develope this further I need some feedback and testers. I know this needs some commitment of time and Bandwith but it is just a humble invitation to help to make sage an easier experience for a lot of users. I have announced this installer and the download link (650 MB) here: http://groups.google.com/group/sage-windows/browse_thread/thread/ca801cbfc5b9170d kind regards emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: security question with sage 4.7.2 installation
Just some additional info:
The login is automatic as admin and no password. The worksheets look good
and everything is much faster on the local installation; however,
I prefer not to use it much until I get some advice. I have not been able
to figure out how to start the notebook server with option Secure=True.
The command is:
sage -notebook secure=True
this will start an https server
(You will have to use Ctr C or similar to stop the running server in
the VM to get a command prompt)
I removed the sage machine from virtualbox and imported it again to see if
I missed the point where I was supposed to choose a password,
but nothing came up.
You can use
sage -notebook reset=True
to set a new admin password
Any suggestions?
Carl Eberhart
Actually the notebook has lots of options for startup:
http://www.sagemath.org/doc/reference/sagenb/notebook/notebook_object.html
Example:
IP=$(ifconfig eth0| grep 'inet addr:' | cut -d: -f2 | awk '{ print
$1 }')
sage -notebook port=8000 address=$IP require_login=False
open_viewer=True
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[sage-support] Re: Win 7 64 Host and SAGE/Fedora guest on VMware or Virtualbox
On Nov 23, 12:31 pm, Carel_van_Dam carelv...@gmail.com wrote: Hi, I'm new to sage and and Linux and I've been struggling the last few days to get a running SAGE system on my own machine using the *.ova and *.ovf files. I'm reporting what I've found since there seems to be little info on the web, or atleast there is little info using the key words I've been using to search and I've tried quite a few combinations. I also have a few questions that are posted at the bottom. The problem, as per the readme.txt in the sage website : 1) Download the sage.ovf file 2) Downloaded Sun's VirtualBox or VMware 3) import the application in Virtualbox or VMware starts If you get IOAPIC errors on virtualbox go SAGESettings (Ctrl +s)SystemEnable IOAPIC to correct 4) Sage says point firefox tohttp://localhost:8000 If you can't connect via firefox your first response may be 'Oh Doodle', Looking on google for help is a mess. Corrective action : To the Newbie there is no direct reason why this should happen, all the forums point to different problems, none of which seem to help, most indicate that NAT or Bridged networking should be enabled. None of these help because infact your network card on the SAGE/Fedora VM machine is down. This appears to be in the OVF/OVA file and not a problem in the virtualbox or VMware machine. The steps to verify this are as follows : Exit sage note book : 1) press Ctrl+C once or twice to exit the SAGE notebook : either login as root (Tricky from terminal 7) or prefix all the following commands with sudo or 1) press Alt+Fn where n is another terminal n = 2 - 6 worked nicely and login as root, password should be sage 2) execute : ifconfig # This will show only the lo interface if you have this error 3) execute : ifconfig -a # This will show all the interfaces and you'll notice eth1 exists but isn't necessarily up if you don't see an eth1 or eth0 then you may have issues with the driver not being installed, I don't know how to fix that. You probably won't see a wlan0, as all VM cards are treated as hard wired LAN connections. 4) execute : ifconfig eth1 up # This starts the eth1 card and should assign it an ip of 10.xxx.xxx.xxx if you're using a bridged connection with a DHCP router/ADSL box then, this should also work with NAT but I'm not sure. 5) execute : dhclient eth1 # This will get the correct ip info for the VM and your VM will be able to access the interwebs, I checked this only with ping. haven't tried links (the cmd based internet browser), not sure it's installed in the *.ova/*.ovf in all honesty. So having eventually worked all that out, I now have a few questions. 1) how do I configure the Fedora VM to use my eth1 settings at startup instead of restarting with the incorrect IP and eth0 inactive ? 2) how does this all affect twisted the sage webserver ? 3) how do I setup sage to operate from whatever IP the DHCP assigns the Fedora machine, instead of running local host ? Thanks to anyone who replies, I also hope I posted in the right forum regards, Carel Hi Carel, I could think of no better place than sage-support to bring this up! Which Readme file to you refer to? Can you provide a link? on the download page for the sage windows version there are two README files http://sagemath.org/download-windows.html but both of those files refer to the ova file (not to the older format ovf) There is still some old documentation floating around and there is ongoing work to clean this up http://trac.sagemath.org/sage_trac/ticket/12042 About your questions I can give some educated guesses, maybe Volker Braun who makes the Fedora VM Images can chime in. 1) It should not be necessary to reboot the virtual machine. You could stop the running virtual machine from the Virtual Box pannel once you have the ethernet interface configured and later resume, so there would be no need to bring the interface back up. If you really want to have those configuration steps performed at startup you could put them in a script and place them at a location where it is performed at each boot (Maybe in /etc/profile.d?). You will have to find out how Fedora handles it. 2) I think this doesn't affect the sage webserver. It will work from the host as soon as you have a working network interface with the VM. 3) Do have an IP adress in the 192.168.xxx.xxx range choose Bridged Adapter I also build sage VMs (with a little different focus). I try to get it easier and more user friendly, application only. http://boxen.math.washington.edu/home/emil/doc/html/en/relase-notes-slvms-b.htm.htm (download is 576 MB). Maybe you could try this, I would be happy about any feedback, also about the installation instructions. Thanks for reporting ... emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit
[sage-support] Re: Mixing tab and spaces on the LiveCD
On Oct 19, 3:05 pm, Laurent moky.m...@gmail.com wrote: Hi all Sage's developer prescriptions is to use spaces and no tab. The default editor on the LiveCD uses TAB ... well. I got some troubles with that when I used on the live cd a program I wrote in my normal editor. More specifically, my user-case is that I had exercises with my students on the live cd (don't ask why;)[1]). I gave them a file in which most of the sage's code was already written; they only had to perform minor changes. The ones who used TAB got the error of inconsistent indentation due to mixing of TAB and spaces. I think that the default configuration of the default editor on the live cd should make spaces when the TAB key is pressed. What do you think about ? Laurent [1] I don't want to denounce in which university you can boot public computers on a live cd. Ok, this is a detail I had not thought of. So thanks for bringing it up. In fact the default editor geany allows for easy change of the indentation style http://www.geany.org/manual/current/#indentation it is as easy as to navigate to DocumentIndent TypeSpaces in the menu. If you want to have spaces as default indent you have to edit the file /root/.config/geany/geany.conf (.config is a hidden directory so click on the eye symbol in the File manager). I think it is enough to change the line 78 in indent_type=0 then you could remaster the live CD image (maybe make some additional changes like a customized default wallpaper or even include some example worksheets) before you distribute it. I made a guide how to do this here: http://boxen.math.washington.edu/home/emil/doc/html/en/HOWTO-Advanced_Setup.html#Remaster_the_Live_CD_ This change will be in the next release of the Live CD kind regards emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Using Sage Python as System Python
On Jan 12, 6:22 am, mankoff mank...@gmail.com wrote: On Jan 11, 9:57 pm, Adam Webb maxthemo...@googlemail.com wrote: On Jan 12, 6:49 am, mankoff mank...@gmail.com wrote: Hi Group, I'm using Sage as my python install. How can I upgrade a python package within sage? For example, pygmentize is version 0.11, and I'd like to upgrade this. Easy_install doesn't seem to be working, or places the new binary in /usr/local/bin, and if I copy that into sage/ local/bin/ it causes problems. Thanks, -k. Hi, You are using the system-wide easy_install rather than the sage one. Do 'sage -sh' first and then use easy_install. That will install into your sage location. Adam That works just fine. Thank you! -k. Hm, I ask that here because it seems related somehow. Is there a way to make plotting behave normal from the python commandline? I know that from the notebook it will show all pictures which are stored in the notebook directory. I also read http://uw.sagenb.org/home/pub/9/ So question is, can settings be changed so that from pylab import * x = linspace(-1,1,1000) f = sin(6*x) + sin(60*exp(x)) plot(x,f,'k') actually produces a plot from the commandline? I have a related problem with getting Texmacs to show sage plots, there is always a message about a missing matplotlib GUI backend. Does anybody has pointers how I could fix this? thanks! emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Using Sage Python as System Python
My guess is that matplotlib was built without the gui. I build Sage from source and in that case it is necessary to set an environment variable. For example in bash: export SAGE_MATPLOTLIB_GUI='yes'. This then will tell it to try to build a gui. It does require that the needed devel packages are present. Matplotlib can use several such as Tk, Qt, Gtk. Adam Hello Adam, thanks very much for that, will it try to built every possible backend or do I need to set an additional Variable? emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Sagelive-511-46-r3 Live CD update
I updated the Live CD version, this also concerns some recent postings on this list (e.g. Plotting in R, or the ability to use cython in a VM ware image) Readme file: http://boxen.math.washington.edu/home/emil/sagelive/readme.txt Homepage (needs Update): http://boxen.math.washington.edu/home/emil/doc/html/en/ Download www.mydrive.ch username: downl...@sagelive password:mathematics Alternativ: http://boxen.math.washington.edu/home/emil/sagelive Changelog sagelive-511-46-r3: + Compiled sage from scratch (to replace the ubuntu binaries). Passes sage -testall and make ptestlong (0 errors). + Plotting in R works out of the box in this release. + Updated gfortran (4.4.3) + GUI interface setup of savefile + New Menu Sage Components - includes GAP, Singular, Maxima, R, ECL, IPython, Python + included jsmathfonts for pretty notebook rendering + Some new wallpapers + Updated swapwizard (will use pagefile.sys, will mount ntfs r/w) + installwatch for the development package is fixed in this version (just need devx.sfs for buildutils and compilers) + some other small bugfixes - Help docs for sagelive may be slightly out of sync, try the online version. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sagelive-511-46-r3 Live CD update
A somewhat more graphical release announcement on the Sage Live Forum http://murga-linux.com/puppy/viewtopic.php?t=62231 -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: how to enable plotting in R
Hm, does R need the Xorg - dev headers to work properly? Thats the Well, I don't know why, but they apparently think so. It's in the documentation that this (or something like it) should be in to build these things. I really need to ask their devel list someday... - kcrisman Maybe it is so, that those headers are necessary to build, but not necessary to run ... In that case it makes sense that this feature is optional when building. But nevertheless binaries should be built with them, because people can run it without Xorg headers. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: sage -testall --optional
On Jan 5, 5:49 pm, Volker Braun vbraun.n...@gmail.com wrote: I'd say that make ptestlong should run without errors before publishing a live binary build. make ptestlong passed, with one exception: The following tests failed: sage -t -long -force_lib devel/sage/sage/interfaces/ecm.py # Time out Timout at 1800 sec I run the test again with option -verbose sage -t -verbose -long -force_lib devel/sage/sage/interfaces/ecm.py and it passes after 34 sec. Can a test get stuck by parallel watching of Jimmy Hendrix Youtube videos? -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: how to enable plotting in R
Just about that, yes, you can use Sage just as a distribution of scientific software. On the commanline, just enter $ sage -sh and you are inside the so called sage environment. There, you can start any of it's programs, and in your case, you can start R and install the R commander. Via this environment you basically bypass everything of sage and you have direct control of all tools. (i.e. theoretically, you could download and install a binary version of R from their website while being in that environment, replacing the one from sage) Unfortunately, I tried it and I got errors installing the Rcmdr package .. H For sake of completeness I have to add that I just did sage -sh R install.packages(Rcmdr, dependencies=TRUE) library(Rcmdr) in my fresh sage build, and R Commander is working as expected. Truly great stuff ... emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: how to enable plotting in R
The tests for that are optional - we can't assume every system with Sage has the right stuff, unfortunately. Why the VM image *and* Ubuntu binaries don't have it is a mystery; my guess is that they are compiled on some virtual machine on some other machine, and that the virtual machine is a minimal setup. I don't know where those binaries are created, though. - kcrisman I understand the reasoning and that it is impossible to have every feature working out of the box on every machine. In case of plotting in R I think this is one of the finest parts of that package, so its a shame it is problematic. I was always ignorant of sage -testall --optional! ;-) I always thought I am very thouroughgoing with my sage -testall after each installation. Hm, does R need the Xorg - dev headers to work properly? Thats the only reason I can imagine it is not feasable to build that into a standard binary (X and linpng should be there in 99.99 % of Ubuntu installs). I am not sure about it, because I have tested an R package without those headers installed, and demo(graphics) worked fine. The VM is a different story, but it should be possible to build one where plotting is working. emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] sage -testall --optional
I have compiled sage from source and have now a result for the command sage -testall --optional I have 147 failed tests. http://boxen.math.washington.edu/home/emil/stuff/failed.txt (complete log: http://boxen.math.washington.edu/home/emil/stuff/test.log) There is lots of you don't have Mathematica/Maple/Magma etc in the log. Those I obviously won't buy. Is there anything else in it which should work in a live CD of sage, i.e any features which could be implemented with reasonable effort and reasonable use of memory ressources? thanks for any pointers emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: how to enable plotting in R
The main problem is that Puppy Linux or whatever must have compiled Sage without the right headers available. It's entirely mysterious to us exactly why R requires certain developer tools installed to give you X11. But it doesn't, and so in the spkg-install we check for as many of these things as we know about. However, the Puppy installation probably doesn't have them all, so when it compiled R, it did so without support for this. Here is part of it (without some comments): if [ -f /usr/include/X11/Xwindows.h ]; then XSUPPORT=yes else if [ x`uname` = xSunOS ] [ -f /usr/X11/lib/libXv.so ] ; then XSUPPORT=yes else XSUPPORT=no fi fi So one solution would be to compile Sage from scratch (which is easy); another is to download a binary built on a machine which had these things. We really wish there was a good solution to this, but repeated requests on the R help list did not lead to further elucidation. I'm not sure whether this will help, but it should help understand what the problem is, anyway. OK, i compiled sage from scratch without any special options and plotting works r.capabilities() gives the same results as the separate R build. That solves the problem for now - thanks. What I can't understand is why this is not working in the precompiled ubuntu binaries and VM image (without warning). It would have been convenient to use those binaries, but it is no problem to compile sage for every version from scratch. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: how to enable plotting in R
On Dec 29 2010, 6:49 pm, emil emil.widm...@gmail.com wrote: On 29 Dez., 17:33, kcrisman kcris...@gmail.com wrote: The main problem is that Puppy Linux or whatever must have compiled Sage without the right headers available. It's entirely mysterious to us exactly why R requires certain developer tools installed to give you X11. But it doesn't, and so in the spkg-install we check for as many of these things as we know about. However, the Puppy installation probably doesn't have them all, so when it compiled R, it did so without support for this. Here is part of it (without some comments): if [ -f /usr/include/X11/Xwindows.h ]; then XSUPPORT=yes else if [ x`uname` = xSunOS ] [ -f /usr/X11/lib/libXv.so ] ; then XSUPPORT=yes else XSUPPORT=no fi fi On Mac we instead enable Aqua, because X11 support is very difficult to implement for the general case (it depends heavily on version of OS X). So one solution would be to compile Sage from scratch (which is easy); another is to download a binary built on a machine which had these things. We really wish there was a good solution to this, but repeated requests on the R help list did not lead to further elucidation. Also, not all R packages behave nicely in this way - I've had trouble installing ones that assumed access to certain things like OpenGL as well. But you are right that big ones like R Commander should be ok. I'm not sure whether this will help, but it should help understand what the problem is, anyway. - kcrisman Ok, thanks for the pointers! In fact, as I said, I have just used the usual ubuntu binaries from the sage server to make the live cd. I did this because I figured this could be a possibility to reduce the amount of work to have a working live CD considerably (given the fast release cycle of sage). And, as I said, it passed sage -testall without errors (exception: cython throws on error because there is no gcc installed in the base distribution). Also, as mentioned, the current ubuntu vmware image has exactly the same problem (i.e. plotting in R doesn't work, r.capabilities() give the same values). Also I have every header installed in my installation. There is a well tested development package, and I have even installed all the kernel headers . So I doubt it is really a problem of missing header files in the base OS. The same packages are used for all compiling purposes. I will compile a version of R and try to get it working, then I will compile sage from scratch an use it instead of the ubuntu binaries. Lets see where the dog is burried (german proverb). So is it right to say that plotting from R, and installation of most R- packages should work in a working sage install? Just to be sure it's no ghost I'm hunting ... emil So R-graphics in sage don't work by default, this is probably exactly http://trac.sagemath.org/sage_trac/ticket/8868 It is not working in the Ubuntu 32 bit binaries, the ubuntu 64 bit binaries and the current VM image. I built R from source on my machine, and I have jpeg (TRUE ) png (TRUEE)tiff (TRUE ) tcltk (TRUE)X11 (TRUE) aqua (FALSE) http/ftp (TRUE ) sockets (TRUE ) libxml (TRUE ) fifo (TRUE) cledit (TRUE ) iconv (TRUE) NLS (TRUE) profmem (FALSE ) cairo (TRUE) - i.e. all but aqua and profmem are TRUE So if I want to recompile sage from source (with FAT_BINARIES=TRUE), what compile options do I need to get those things working? Or could anyone point me to the right place inside the sage install scripts? I also think that there should be an error or at least a warning about failing R plotting when doing sage -testall. Happy new year to all, emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] how to enable plotting in R
I have a question regarding plotting in R.
If I go to Notebook (change to r from the drop down menu) and type
x-c(1,2,3)
plot(x)
I get a strange error message:
Error in png(): X11 is not available
I have made the start scripts available with
install_scripts('/usr/bin'). If I issue those commands in the R
console then nothing happens (without error message).
if I issue capabilities() I get the following results:
jpeg (FALSE ) png (FALSE)tiff (FALSE ) tcltk (FALSE)X11
(FALSE) aqua (FALSE) http/ftp (TRUE ) sockets (TRUE ) libxml
(TRUE ) fifo (TRUE) cledit (TRUE ) iconv (TRUE) NLS (TRUE)
profmem (FALSE ) cairo (FALSE)
So R thinks I have no X11 system ( I have, xorg with JWM and GTK) and
no support for graphic files (I have libpng.so installed in /usr/lib ,
and I also find it in the sage tree, so probably sage has its own
version)
I had googled alot and found there were some issues with the R-
plotting interface, but as far as I understood this should be fixed,
so basically it should be possible to plot from R.
This is in the live CD version which uses Puppy Linux (has Ubuntu
Binaries). I installed sage (4.6) directly from the Ubuntu binaries
(passed sage -testall without errors). Could this be fixed easily
(maybe some symlinks?). Or is there a chance for a fix if I compile
sage on the system from source?
I also tried the current vmimage on a windows host and it gives the
same for r.capabilities().
I got feedback from people who are very interested in the sage package
but mainly want to use some components in a classical way (e.g.
Rcmdr with R) - Do you think this is possible at all?
many thanks for any hint on this
emil
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[sage-support] Re: how to enable plotting in R
On 29 Dez., 12:28, Harald Schilly harald.schi...@gmail.com wrote: On Wednesday, December 29, 2010 10:25:11 AM UTC+1, emil wrote: I got feedback from people who are very interested in the sage package but mainly want to use some components in a classical way (e.g. Rcmdr with R) - Do you think this is possible at all? Just about that, yes, you can use Sage just as a distribution of scientific software. On the commanline, just enter $ sage -sh and you are inside the so called sage environment. There, you can start any of it's programs, and in your case, you can start R and install the R commander. Via this environment you basically bypass everything of sage and you have direct control of all tools. (i.e. theoretically, you could download and install a binary version of R from their website while being in that environment, replacing the one from sage) Unfortunately, I tried it and I got errors installing the Rcmdr package .. H Hello Harald, yes, It is not working as expected. Expected behaviour would be that you have access to the R plotting engine and (after installing the Developer package with gcc etc) you can install packages (including Rcmdr). Some days ago I wanted build Texmacs, I compiled it from source and got it working, but plotting was broken too - so I dumped it because I though there is something wrong with my Texmacs build, but maybe this problem has the same roots. I just want to mention that of the feedback from the last sage live CD at least half of all users who try it are interested mainly in one component (R, Python with libraries, maxima). So I really would like to fix this and have a working direct access from outside sage to those packages. What would be the best approach? Should there be a track ticket or later even something in the doctests to test this functionality? Sorry I am clueless here, its a bit above my head. kind regards emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: how to enable plotting in R
On 29 Dez., 17:33, kcrisman kcris...@gmail.com wrote: The main problem is that Puppy Linux or whatever must have compiled Sage without the right headers available. It's entirely mysterious to us exactly why R requires certain developer tools installed to give you X11. But it doesn't, and so in the spkg-install we check for as many of these things as we know about. However, the Puppy installation probably doesn't have them all, so when it compiled R, it did so without support for this. Here is part of it (without some comments): if [ -f /usr/include/X11/Xwindows.h ]; then XSUPPORT=yes else if [ x`uname` = xSunOS ] [ -f /usr/X11/lib/libXv.so ] ; then XSUPPORT=yes else XSUPPORT=no fi fi On Mac we instead enable Aqua, because X11 support is very difficult to implement for the general case (it depends heavily on version of OS X). So one solution would be to compile Sage from scratch (which is easy); another is to download a binary built on a machine which had these things. We really wish there was a good solution to this, but repeated requests on the R help list did not lead to further elucidation. Also, not all R packages behave nicely in this way - I've had trouble installing ones that assumed access to certain things like OpenGL as well. But you are right that big ones like R Commander should be ok. I'm not sure whether this will help, but it should help understand what the problem is, anyway. - kcrisman Ok, thanks for the pointers! In fact, as I said, I have just used the usual ubuntu binaries from the sage server to make the live cd. I did this because I figured this could be a possibility to reduce the amount of work to have a working live CD considerably (given the fast release cycle of sage). And, as I said, it passed sage -testall without errors (exception: cython throws on error because there is no gcc installed in the base distribution). Also, as mentioned, the current ubuntu vmware image has exactly the same problem (i.e. plotting in R doesn't work, r.capabilities() give the same values). Also I have every header installed in my installation. There is a well tested development package, and I have even installed all the kernel headers . So I doubt it is really a problem of missing header files in the base OS. The same packages are used for all compiling purposes. I will compile a version of R and try to get it working, then I will compile sage from scratch an use it instead of the ubuntu binaries. Lets see where the dog is burried (german proverb). So is it right to say that plotting from R, and installation of most R- packages should work in a working sage install? Just to be sure it's no ghost I'm hunting ... emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: windows installation 3
On 27 Dez., 20:37, Cyrille Piatecki cyrille.piate...@univ-orleans.fr wrote: Quoting emil emil.widm...@gmail.com: Dear Emil, first of all, I leave for the end of the week tomorrow so if you answer this message, don't be astonished if I do not react. Yesterday, it was impossible to download from the swiss domain so I went on http://boxen.math.washington.edu/home/emil/doc/html/en/ But as I am writting this lines I tryed to go on the swiss domain and today it works --- yesterday it do not accepted the username/password association. I have verifyed the checksum it's perfect. But unfortunately windows continue to says that it is not a valid windows program. I tested and obviously the version on the server is broken, I upload the working exe installer. should be up in 2 hours. It seems that I could work with the iso file, but unfortunately as I am a new commer to vmware, I don't know how to setup the mouse and then I could nopt type set any command because I have not been able to setup my keyboard. An other problem is that I don't know how to change the size of the virtual machine. The official virtual machine has VMware tools installed, so changing size is just a matter of resizing the VM window. I am going to test the cd Just before closing. I think Sage work from the iso file but it's so slow that I think I will be waiting if ever there will be a cygwin version. Cordialy Cyrille -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: windows installation 3
On 27 Dez., 09:56, Cyrille Piatecki cyrille.piate...@univ-orleans.fr wrote: Quoting emil emil.widm...@gmail.com: Dear Emil, I will check your comments this afternoon. Our comments crossed in the Aether ... Butr I must say that yesterday I have follow your advise and tryed the pupy way. So I have dowloaded the Iso and the exe file. Which download place did you use? After more than two hours, it was too late to try to use the exe but I was able to transfert the iso on a cd. You downloaded from France? Early this morning, I have tryed to use the exe file but it tels me that's not a windows file --- perhaps a loading problem. You can check the integrity of the download by comparing the md5 checksum. The command is md5sum filename. The md5sums of the downloads should be in the download-directories. And the cd doesn't boot How did you burn the iso to CD? You have to burn the iso as iso (then it will be able to boot). If you burn the iso as normal data then it will not work ... Some times all goes wrong. In my experience there is a learning curve in everything and lot of things can go wrong. If you have done it 10 times then its easy, but the first time is often painfull (but it shouldn't necessarily be that way imo). Did you follow my brief instructions on http://boxen.math.washington.edu/home/emil/doc/html/en ? I try to give a working Howto, but of course there is much space for improvements. If you have any comments or suggestions on it I'll try to use it. I have also an other question Is there a procedure to load an iso file directly on vmware or any other virtualiser. IF you have a bootable iso file you can use any virtualisation software to run it. I ran the isofile of sagelive in vmware, virtualbox and Qemu. VMplayer: In principle you have to say: create new VM. then choose that virtual CD is set to the isofile. Choose 512 MB Ram (instead of default 256) in VM settings. If you just want then harddisk settings don't matter. Then you can test the iso in the VM (thats what I do when creating iso files) However producing a well working virtual machine image like the official one is a bit tricky and more involved. I am currently trying to make such an image from my iso, but I won't finish it during christmas holidays. Thanks Cyrille I will try to make a download from the given locations from the exe file and the iso in the evening (no time now - skiing with the kids), could you please send me your computer specs (OS version (XP, Vista, /-32 or 7-64, RAM). Then I can post a detailled howto. On 26 Dez., 10:57, emil emil.widm...@gmail.com wrote: Hello Cyrille, sage-vmware.vmdsk is the virtual harddisk file. I have done a installation of the virtual machine recently but I cant recall having that troubles. I will check my install and look where I find this harddisk file and be back later. OK, I downloaded sage-vmware to desktop and extracted it there. The following is extracted from the README.txt with my comments: ... Installation Installing Sage should take 15 to 20 minutes, less than 2 GB of hard drive space, and be painless. 1. Download sage-vmware-x.y.zip -- was sage-vmware-4.6.zip 2. Extract it anywhere you want. This will take about 15 minutes despite anything Windows tells you. Do *not* stop the extract halfway through and think Sage will still work.) -- was faster (maybe 5 min) on my laptop 3. Make sure you have installed the free VMware program. See the following URL for more information:http://www.vmware.com/products/player/ --I have VMplayer 3.1.3 installed 4. Double click on sage_vmx in the sage-vmware-x.y directory to run Sage. -- IMPORTANT: Filename is sage-vmware (sage-vmware.vmx) not sage_vmx --The virtual disk file is also in the same folder, its name is sage- vmware.vmdk. Using Sage == 1. When Sage starts up, click in the window (and possibly press Control-G on some computers), then type notebook at the prompt to start the Sage notebook server. - This is a change with the new versions. You have 3 Icons to start Notebook, Sage on commandline or a terminal. - If you start sagenotebook,in the lower right cornerof the vm a window is shown with an IP adress. This is the IP adress to type in the windows-browser (bookmark it?!) 2. Now you can use Sage via your web browser from Windows (it's best to use Firefox). -- Had no problems with seamonkey and opera May I also point you to the sage windows installer, which is kind of a different approach:http://boxen.math.washington.edu/home/emil/doc/html/en/ Any feedback? kind regards emil On 26 Dez., 06:59, Cyrille Piatecki cyrille.piate...@univ-orleans.fr wrote: So I have isntalled vmWare Player and double-clicked on sage-vmware.vmx as is said in the tutorial but the answer is File not found: sage-vmware.vmdk Since all necessary
[sage-support] Re: windows installation 3
Hello Cyrille, sage-vmware.vmdsk is the virtual harddisk file. I have done a installation of the virtual machine recently but I cant recall having that troubles. I will check my install and look where I find this harddisk file and be back later. May I also point you to the sage windows installer, which is kind of a different approach: http://boxen.math.washington.edu/home/emil/doc/html/en/ kind regards emil On 26 Dez., 06:59, Cyrille Piatecki cyrille.piate...@univ-orleans.fr wrote: So I have isntalled vmWare Player and double-clicked on sage-vmware.vmx as is said in the tutorial but the answer is File not found: sage-vmware.vmdk Thanks Cyrille -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: windows installation 3
On 26 Dez., 10:57, emil emil.widm...@gmail.com wrote: Hello Cyrille, sage-vmware.vmdsk is the virtual harddisk file. I have done a installation of the virtual machine recently but I cant recall having that troubles. I will check my install and look where I find this harddisk file and be back later. OK, I downloaded sage-vmware to desktop and extracted it there. The following is extracted from the README.txt with my comments: ... Installation Installing Sage should take 15 to 20 minutes, less than 2 GB of hard drive space, and be painless. 1. Download sage-vmware-x.y.zip -- was sage-vmware-4.6.zip 2. Extract it anywhere you want. This will take about 15 minutes despite anything Windows tells you. Do *not* stop the extract halfway through and think Sage will still work.) -- was faster (maybe 5 min) on my laptop 3. Make sure you have installed the free VMware program. See the following URL for more information: http://www.vmware.com/products/player/ --I have VMplayer 3.1.3 installed 4. Double click on sage_vmx in the sage-vmware-x.y directory to run Sage. -- IMPORTANT: Filename is sage-vmware (sage-vmware.vmx) not sage_vmx --The virtual disk file is also in the same folder, its name is sage- vmware.vmdk. Using Sage == 1. When Sage starts up, click in the window (and possibly press Control-G on some computers), then type notebook at the prompt to start the Sage notebook server. - This is a change with the new versions. You have 3 Icons to start Notebook, Sage on commandline or a terminal. - If you start sagenotebook,in the lower right cornerof the vm a window is shown with an IP adress. This is the IP adress to type in the windows-browser (bookmark it?!) 2. Now you can use Sage via your web browser from Windows (it's best to use Firefox). -- Had no problems with seamonkey and opera May I also point you to the sage windows installer, which is kind of a different approach:http://boxen.math.washington.edu/home/emil/doc/html/en/ Any feedback? kind regards emil On 26 Dez., 06:59, Cyrille Piatecki cyrille.piate...@univ-orleans.fr wrote: So I have isntalled vmWare Player and double-clicked on sage-vmware.vmx as is said in the tutorial but the answer is File not found: sage-vmware.vmdk Since all necessary files should be present if you downloaded the correct zip file, I just can think of a wrong setting in the VMplayer configuration. On the top of the VM-window check Virtual Machine/ Virtual Machine settings/ Options (Tab) / Working directory (on right side) Thanks Cyrille merry christmas -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Installing SAGE alongside existing Python installation
On Dec 14, 10:56 pm, Simon King simon.k...@uni-jena.de wrote:
Hi Emil!
On 14 Dez., 23:20, emil emil.widm...@gmail.com wrote:
Could you give an example of how to use install_scripts to make e.g.
python or R available from outside sage?
For example: I have a directory bin/ in my home directory, that also
is in my PATH. Once upon a time, I did
sage: install_scripts('~/bin/')
In principle, you could name any directory to which you have write
permission. In that directory, Sage creates a couple of scripts: gap
gp hg ipython maxima mwrank R singular
There is not much magic in the scripts. For example, the gap script
is
#!/bin/sh
sage -gap $*
Hence, if I do
gap
in a shell, then in fact sage -gap is executed; so, it uses the gap
shipped by Sage, but it doesn't start Sage.
Apparently the scripts don't need to change if the Sage-gap, -
singular, -gp,... versions change. Hence, when I say once upon a
time, it was really only *once*.
Remark: You ask if it is possible to make python or R available. I
don't know if it is possible to ask the install_scripts function to
*only* install python and R but nothing else. Also I notice that there
is no script called python in the list above; but it would of course
be easy to write such script.
And it is somehow related to another post here
...http://groups.google.com/group/sage-support/browse_thread/thread/b3e9...
Sorry, that post is beyond my knowledge. I even don't know if it is
related.
Cheers,
Simon
Hello Simon,
thank you very much for this explanation. I think this is a very nice
feature and this should be made more
visible when promoting sage. Also I found your explanation more
helpful than the tutorial, maybe this text can be replaced :-)
At least I have struggled to build various tools on a Linux
installation, and it takes a lot of time to get R, Maxima, Python with
libraries working correctly. And this already exists in Sage, well
tested and stable! That could save a lot of time for many people.
emil
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[sage-support] Re: Using sage python with GUI
On Dec 14, 9:13 pm, mankoff mank...@gmail.com wrote:
Hi Sage Group,
I'm trying to use sage as a means to get a nice python installation,
without actually using sage. I hope this is an OK use of the software.
I imagine I'll transition to using the sage specific tools, but to
start I would like to work with just python.
I have installed sage (4.6) on OS X, and then set PATH, PYTHONPATH,
and DYLD_LIBRARY_PATH to the python distribution in sage. I seems to
work based on the simple test of:
% python
import matplotlib, pylab
neither of which are accessible/usable with the default OS X install.
However, I am now running into a problem when I try to display
graphics with a GUI. If I run this which I think should give me a
simple empty window:
import pylab as P
P.figure()
P.show()
I get this error:
Your currently selected backend, 'agg' does not support show().
Please select a GUI backend in your matplotlibrc file ('/Users/mankoff/
local/sage/local/lib/python2.6/site-packages/matplotlib/mpl-data/
matplotlibrc')
or with matplotlib.use()
I've tried all the options listed in that file (PDF, MacOSX, GTK,
TkAgg, etc.), and also searching online suggested I use code like
this:
import matplotlib as mpl
mpl.use('TkAgg')
import pylab as P
P.figure()
P.show()
But nothing has worked yet. Any advice much appreciated.
Thanks,
-k.
have you tried to call
sage -python $*
it should call sages python with the paths set up correctly, so you
can import numpy, etc
Regarding plotting and problems with the backend, I found this link:
http://wiki.sagemath.org/sage_matlab
I don't know if there is a backend included by default, but the link
above should give you an idea how to set one up. I hope this is a
starter ...
emil
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[sage-support] Re: Installing SAGE alongside existing Python installation
On Dec 12, 9:30 pm, Juanlu_001 juanlu...@gmail.com wrote: Hmm, you are right, I might break something if I don't stuck in 2.6... All right, thank you very much anyway. On Dec 12, 3:57 pm, Harald Schilly harald.schi...@gmail.com wrote: On Sunday, December 12, 2010 3:49:33 PM UTC+1, Juanlu_001 wrote:Is there any way to accomplish what I'm asking? I do not fear the shell or source code. It's possible and done for some linux distributions, but I don't think it's a good idea for you. You can look into Sage's local/lib/python2.6 folder, where you can see that you can only save about 40MB (all the rest is in the site packages which are part of sage anyways). Also, Sage is only tested to work well with the given python version. That might not be true for other ones, because some libs directly access python internal datastructures that might be subject to changes and so on. Rather, you could go the other way round and use sage -python as your python interpreter or work inside the Sage Environment via $ sage -sh ... depending on what you want to accomplish. H Is it an idea to do it the other way around? Make symlink to the python which is contained in sage to use it from outside? Thats how I did in the sage live CD. So you save space and you can use all libraries (numpy, sympy ... ) which are already contained in the sage python. emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Installing SAGE alongside existing Python installation
On Dec 14, 7:41 pm, Simon King simon.k...@uni-jena.de wrote: Hi, On 14 Dez., 17:07, emil emil.widm...@gmail.com wrote: Is it an idea to do it the other way around? Make symlink to the python which is contained in sage to use it from outside? I think that functionality is provided by the command install_scripts. Cheers, Simon Could you give an example of how to use install_scripts to make e.g. python or R available from outside sage? I looked at http://www.sagemath.org/doc/reference/sage/misc/dist.html but somehow the usage is not clear to me? I also ask because i think this would be a very interesting feature. And it is somehow related to another post here ... http://groups.google.com/group/sage-support/browse_thread/thread/b3e97ed22b3eddd4 emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: ssse3 chipset instruction error
On 10 Jul., 08:27, Mike Hansen mhan...@gmail.com wrote: On Fri, Jul 9, 2010 at 11:19 PM, emil emil.widm...@gmail.com wrote: Any help on how to solve this? Is a rebuild on the mentioned eeepc701 necessary? How do I build sage with the ssse3 flag disabled on a ssse3 machine (for the next live CD / Puppy Linux sage package) to avoid this problem? Did you build Sage with the SAGE_FAT_BINARY environment variable set? --Mike No, I just did make. I suppose correct would be export SAGE_FAT_BINARY=yes make ./sage -bdist x.y.z-fat emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: sage squashfs?
On 27 Jun., 08:27, Jurgis Pralgauskis jurgis.pralgaus...@gmail.com wrote: Hello, I foundhttp://wiki.sagemath.org/SagemathLiveand liked the idea a lot. but I can't accesshttp://boxen.math.washinegton.edu/home/frank/sagemath/squashfs/karmic... I have netbook with limited diskspace, and I'd like to take it to the journey. it runs Lubuntu 10.4 (I am not sure if carmic squashfs would do...) of course, I understand, I could make squashfs file myself: install it on richer PC running Ubuntu lucid, and then run mksquashfs command what else should I take into account? Hello Jurgis, I havent tried this in Ubuntu, but it should work if you download the current Ubuntu binaries and mksquashfs the directory tree, then mount the sfs image like described at the wicki page. From my experiences with the Puppy Linux Sage Live CD: 500MB RAM was not enough to run sage, you also need swap space (maybe 1 GB)- but Ubuntu might be different- so please try and post results :) kind regards emil and would my netbook (EeePc 701, 500MB RAM) be enough to play with sage (or run notebook)? Thanks in advance -- Jurgis Pralgauskis Don't worry, be happy and make things better ;) -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage under Windows - your experiences?
With the Sage Live CD it should be possible to do a frugal install to the windows partition and boot it using the windows program unetbootin (Freeware). So you dont need a linux partition to install. All you need to do is to copy the SageLivePup08.iso to your windows drive and then run unetbootin. Configuration is done with 2 or 3 mouseklicks. After that you have the possibility for dual boot. It is also possible to install the Live CD to a USB stick, I guess most students have on and use it daily. On many computers there is the option to boot from USB. While I think setting up a server is the most professional solution, I also guess some (maybe not all) students like the possibility to play around with sage and install it on their own computer. The Live CD version (which is as explained also a small frugal version, and an USB sage version) contains also the sage documentation and tutorial, so it should be helpfull for beginners. just to add more options kind regards, emil On 16 Apr., 09:14, Alasdair amc...@gmail.com wrote: Next semester I'd like to try to use Sage in my cryptography class, instead of Maxima, which I've been using so far (I've also experimented with Axiom). All the labs at my university run under MS Windows; some labs allow a dual boot to linux. So my options seem to be: 1) In a dual boot lab, install Sage on the linux partition and have the students boot into linux 2) Run Sage in Wubi Linux in Windows 3) Use a live CD version of Sage, and issue one to each student 4) Put Sage inside VirtualBox My experience with students using Linux is less than positive; many feel horribly out of their comfort zone when not in a Windows environment. So I'd like (for file handling, saving and retrieving files etc) the students to be as much of a Windows setting as possible. I'm wondering what experience teachers here have had with Sage, Windows, and students? Thanks, Alasdair -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group athttp://groups.google.com/group/sage-support URL:http://www.sagemath.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: install sage to USB or flash card (Re: sage on slitaz linux?)
On Mar 22, 10:47 pm, bb bblo...@arcor.de wrote: emil schrieb: On Mar 22, 10:44 am, bb bblo...@arcor.de wrote: emil schrieb: On Mar 20, 10:52 pm, Alec Mihailovs alec.mihail...@gmail.com wrote: On Mar 19, 4:51 am, bb bblo...@arcor.de wrote: I tried to compile sage from source on slitaz, a very small and ultrafast starting linux and slitaz might be installed to a bootable USB. No success. You could just use Sage live CD (bootable). If it boots from a CD, it would boot from USB as well, I guess. It is rather small, contains Sage 4.3.1 on Puppy Linux, and is available from http://mira.sunsite.utk.edu/sagemath/livecd/index.html as well on other mirrors. Alec Mihailovs Hi, To get the Sage Lice CD installed on USB should be easy. Start the Live CD. Then Go to the MenuSetupPuppy Universal Installer There are plenty of install options. Choose USB hard drive or USB flash drive. The following menus should be straightforward, try to stick with the install options. I tested it and post this message from the live CD installed to a flash drive. Advantage is that it runs considerable faster than the LIVE CD and it is easy to carry it around. Emil PS: There is also MenuSetupBootFlash Install Puppy to USB. This wizard is more advanced and will also format your stick. If you want to keep your data use the universal installer mentioned above Tnx. I will try Sage live on USB for my new machines. But on road I use a 20 years old laptop that wont start from USB. Why? No one ever tried to steal it! Regards BB Hi BB, there are still possibilites for your ancient laptop. Generally the base distro for the live CD was designed to run on old hardware. If you have 700 MB free on your HD you can try a frugal install. This will not conflict with any existing OS on your laptop. If your primary OS is Linux you can use GRUB (comes with the Live CD: MenuSystemGRUB Bootloader config) to boot the Live CD. I don't know how to do this with old windows or dos versions, but on XP you can use the program Unetbootin to make a frugal install into a windows partition (tested). There is also the possibility to have a boot floppy (google for puppy linux wakepup). This floppy can boot puppy linux from a device which is not bootable otherways (e.g your USB), so it should also work for the Sage live CD. About saving your work: In theorie it should be possible to save your work on the USB in a pupsave file. This file is created after your first boot. Basically it contains all modifications to the directory structure, especially the folder /root. So if you have a frugal install of the live CD on your old laptop, but no pupsave file on the hard disk and the laptop can find the pupsave file on your USB during booting, you can still access your directories and work on your Sage USB/Flash stick. Hope it works for you, and I hope I can finalize my next release of the live CD (including Texmacs). Emil I know puppy as a valuable linux distro from some former experiments a couple of month ago (and years ago with compact flash). (The pagehttp://www.puppylinux.com/hard-puppy.htmof Barry Kauler helped me at that time in understanding - I think it is still a good source of information.) A good idea to use it - I will switch my antique laptop completely to your Sage puppy by a full installation. (May be a frugal install is easier to upgrade?) And TeX support is an important feature! BTW Lyx is a comfortable way for writing scientific and illustrated texts (GUI with a slight touch of Scientific Word/Scientific Notebook from MacKichan Software, but thanks to GPL for 0$!). Lyx allows to compile to postscript and pdf, and by extra tools to convert the .lyx documen to TeX, LateX, and even to HTML. Tnx for Sage puppy and help - BB Hi BB, you will find Lyx already included into the current live CD, as well as Octave for those who need to run some matlab scripts. Frugal install is really easy to upgrade, because the whole installation consists only of a couple of files. But if you have limited RAM and hardware capacity maybe full install is the better option. kind regards emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-support+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[sage-support] install sage to USB or flash card (Re: sage on slitaz linux?)
On Mar 20, 10:52 pm, Alec Mihailovs alec.mihail...@gmail.com wrote: On Mar 19, 4:51 am, bb bblo...@arcor.de wrote: I tried to compile sage from source on slitaz, a very small and ultrafast starting linux and slitaz might be installed to a bootable USB. No success. You could just use Sage live CD (bootable). If it boots from a CD, it would boot from USB as well, I guess. It is rather small, contains Sage 4.3.1 on Puppy Linux, and is available from http://mira.sunsite.utk.edu/sagemath/livecd/index.html as well on other mirrors. Alec Mihailovs Hi, To get the Sage Lice CD installed on USB should be easy. Start the Live CD. Then Go to the MenuSetupPuppy Universal Installer There are plenty of install options. Choose USB hard drive or USB flash drive. The following menus should be straightforward, try to stick with the install options. I tested it and post this message from the live CD installed to a flash drive. Advantage is that it runs considerable faster than the LIVE CD and it is easy to carry it around. Emil PS: There is also MenuSetupBootFlash Install Puppy to USB. This wizard is more advanced and will also format your stick. If you want to keep your data use the universal installer mentioned above. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-support+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[sage-support] Re: sage on slitaz linux?
As far as I now Slitaz is between 25 and 30 MB :) On Mar 19, 4:59 pm, Robert Bradshaw rober...@math.washington.edu wrote: On Mar 19, 2010, at 1:51 AM, bb wrote: I tried to compile sage from source on slitaz, a very small and ultrafast starting linux and slitaz might be installed to a bootable USB. No success. The line from the makefile will be echoed: cd spkg ./install all 21 | tee -a ../install.log the cd to directory spkg is performed sucessfully and then a message appears: env: bash: No such file or directory The the process will finish. Is there any skilled linux user that can interpret this and lend a helping hand? It says bash isn't installed--looks like you need to do that first. Must be a really tiny linux if it doesn't even come with bash. - Robert -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org To unsubscribe from this group, send email to sage-support+unsubscribegooglegroups.com or reply to this email with the words REMOVE ME as the subject.
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
On Feb 24, 12:40 pm, Peter K.H. Gragert pkhgrag...@gmail.com wrote: By the way, via a ethernet-kabel I succeeded to acces the internet ;-). Peter 2010/2/21 emil emil.widm...@gmail.com 5- The screen was dim and I couldn't figure out how to make it brighter. This can also be done in the MenuSetupXorg Video WizardGamma Calibration Hi Berkin, I have to correct my answer, obviously the Gamma calibration is not working as expected. I will try to fix this but can't promise. There is a possible fix with the programm xgamma (I tried it, worked for me) http://www.murga-linux.com/puppy/viewtopic.php?t=29447 cheers, emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.comsage-support%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL:http://www.sagemath.org Hi peter, Sorry for the hazzle, if you have nerves left for tinkering: Howto wifi from commandline http://www.murga-linux.com/puppy/viewtopic.php?t=22469 Any problems else, I might release a bugfix version until end of next week, so please let me know. emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
Hi, Thank you very much for this nice project; now it will be easier to impress friends at the university about the capabilities of both SAGE and Linux. I would like to share a couple of observations (of course these may have to do only with Puppy itself): Thanks you for the feedback 1- Loading to RAM took quite a while although my machine can be considered to be new. Maybe user can be urged to be patient. Normally Puppy Linux is just about 100 MB and loads completly to RAM (if more then 256 MB RAM are found). The advantage is that Applications open very very fast and one can remove the CD while working. The Sage Live CD is 700 MB and I changed the configuration, that the complete sywstem is only loaded when more than 1.5 GB are found. Maybe it is better to force Option pfix=noram? This can be done by default. The loss of speed is not really an issue, but of course the CD drive will be occupied. 2- SAGE worked without any problems. (Also, seeing LyX installed was a nice surprise!) I tested Sage and it passed all tests (sage -testall) at my machine. I was lucky to find a nice Linux package containing Lyx at just 169 MB (this was made by member of puppy linux forum didik from indonesia). Since there is some space left I could also include texmacs (I tested it in the meantime, it works, but seems not as responsive than the rest of the system) 3- I was not able to switch on touchpad clicking. This is some puppy linux related stuff. A good source to tackle such problems is the puppy linux forum which is in general helpfull and competent. I found this thread about touchpads. http://www.murga-linux.com/puppy/viewtopic.php?t=18339 You can edit the xorg.conf file by MenuSetupXorg Video WizardEdit xorg.conf 4- I was not able to connect to WEP secured wireless through none of the connection wizards (there were two different). It seemed to get IP number but no connection was actually established (I'm not an expert by the way!). Hey I am no expert too. Maybe you try this HowTO http://www.wikihow.com/Set-up-a-Wireless-Network-in-Puppy-Linux Good Luck! 5- The screen was dim and I couldn't figure out how to make it brighter. This can also be done in the MenuSetupXorg Video WizardGamma Calibration Regards, Berkin Please report back any quirks, bugs or also some things you like, Current list to chage for the final release 1) fix localisation wizard for boot up 2) fix wallpapers to stretched 3) rework/complete build Html Help pages 3*) include texmacs 4*) change initial bootoption to noram 5*) include a wizard for swapspace * I would like to have feedback on those changes -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
Hello Peter, thanks for your feedback On Feb 20, 6:46 pm, Peter K.H. Gragert pkhgrag...@gmail.com wrote: It works (this one:http://aghitza.org/misc/SageLivePupv02.iso on Vista) and seems to be very pretty for Windows users. But, at this moment I do not know enough about Puppy Linux ...it seems that one can save the state on a NTFS-drive ...(but yet very afraid to let it to be done) Yes, NTFS drives are recognised. I copied and saved to NTFS drives now for several months without problem. I even used the windows pagefile pagefile.sys as swapfile (commands: mkswap pagefile.sys, swapon pagefile.sys). But you are right - without open specifications a risk remains. However, the risk in creating a safefile is limited. Puppy Linux writes the file only once (default size is 512 MB) inside this file it has a Linux filesystem and if you run from CD, USB or frugal install your personal files are saved there. I think I have an explanation what is saved where in the HTML Help in the Where is my C: drive section. Windows sees the file as a normal file which doesn't change after its creation (with the exception if you resize it manually from the MenuUtilityResize personal storage file). So if you create the file, reboot to windows and perform a chkdsk /f everything should be fine. If possible I recommend to install the live cd to linux partition (ext2 or ext 3, frugal install for the beginning). 10 GB is more than enough. In addition one could choose to get 2 to 4 GB of a Linux swap partition. This will be recognized and used at startup. The Tool GParted Partition Manager is very convenient and easy to use. If you get a warning sign for the windows NTFS partition you have to fix the partition first. Use chkdsk /f in command window inside windows and reboot (maybe twice to get everything fixed). Howto is here: http://www.howtogeek.com/howto/windows-vista/using-gparted-to-resize-your-windows-vista-partition/ It started with a GERMAN keyboard, but I could be changed to US-keyboard (though I had to gamble, Puppy-newbie ;-) ). This is a BUG but can be easily fixed see other post Without giving the option=RAM, it seamed to load and load and load, such that I stopped (ctrl-alt-del seemed to do that) ... and using F2 to see options ... Well, see post above, should be a feature, but maybe its better not to load to ram by default. A friend of mine is interested and this seems to be a perfect way for an XP-PC... Would be great if he likes it Peter 2010/2/20 emil emil.widm...@gmail.com On Feb 20, 12:37 pm, Peter K.H. Gragert pkhgrag...@gmail.com wrote: Trying now Alex link ... 2010/2/20 PKHG pkhgrag...@gmail.com I tried a download ... but got only 359 MB? Trying to burn, complained about not correct lenght. So the dowload is 'wrong' I suppose Maybe share it at another 'host'? Greetings Peter Hello Peter, Thank's to Harald Schilly SageLivev02.ios is now mirrowed at the official Download servers! Link:http://www.sagemath.org/download-livecd.html However, I would be very happy about feedback concerning: * Bugs * Localisation (it should be asked at first boot, but it might not) * Hardware requirements (Processor, Memory - positiv and negativ experiances) * any Benchmarks * Is there something missing (i.e. the jsmath-fonts .. ) and generally * suggestions and feedback thanks in advance emil Known Bugs: 1) Localisation menu is not called during first boot (german quertz keyboard loaded by default) Solve: Menu SetupMouse / Keyboard wizardAdvanced Xorg keyboard configurationKeyboard model YOUR MODEL, 2) Wallpaper not stretched for different screen resolutions Solve MenuDesktopNathan Wallpaper Setter Choose STRETCHED Radio Button 3) Notbook in Browser window give Page Load Error Solve: Wait till the sage server starts (in the console window) then press Button Try again. Comment: This should happen only at first start after boot. If you have a slow computer it might happen always. In that case you could edit the script /usr/bin/sagen.sh . Change sleep 3 to a higher value (or lower if good machine). 4) Menu-Fun-Jigsawpuzzle gives an error, because I removed a wallpaper. On Feb 20, 12:37 pm, Peter K.H. Gragert pkhgrag...@gmail.com wrote: Trying now Alex link ... 2010/2/20 PKHG pkhgrag...@gmail.com I tried a download ... but got only 359 MB? Trying to burn, complained about not correct lenght. So the dowload is 'wrong' I suppose Maybe share it at another 'host'? Greetings Peter On 17 feb, 20:40, emil emil.widm...@gmail.com wrote: Hi Jeff, sorry I wanted to post this on sage-devel originally and removed it, but then had no time to repost at sage devel (had to get membership first). Also sorry about any inconvenience with this download server. H. Schilly contacted me and maybe it will be available on the sage mirror
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
5- The screen was dim and I couldn't figure out how to make it brighter. This can also be done in the MenuSetupXorg Video WizardGamma Calibration Hi Berkin, I have to correct my answer, obviously the Gamma calibration is not working as expected. I will try to fix this but can't promise. There is a possible fix with the programm xgamma (I tried it, worked for me) http://www.murga-linux.com/puppy/viewtopic.php?t=29447 cheers, emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
On Feb 20, 12:37 pm, Peter K.H. Gragert pkhgrag...@gmail.com wrote: Trying now Alex link ... 2010/2/20 PKHG pkhgrag...@gmail.com I tried a download ... but got only 359 MB? Trying to burn, complained about not correct lenght. So the dowload is 'wrong' I suppose Maybe share it at another 'host'? Greetings Peter Hello Peter, Thank's to Harald Schilly SageLivev02.ios is now mirrowed at the official Download servers! Link: http://www.sagemath.org/download-livecd.html However, I would be very happy about feedback concerning: * Bugs * Localisation (it should be asked at first boot, but it might not) * Hardware requirements (Processor, Memory - positiv and negativ experiances) * any Benchmarks * Is there something missing (i.e. the jsmath-fonts .. ) and generally * suggestions and feedback thanks in advance emil Known Bugs: 1) Localisation menu is not called during first boot (german quertz keyboard loaded by default) Solve: Menu SetupMouse / Keyboard wizardAdvanced Xorg keyboard configurationKeyboard model YOUR MODEL, 2) Wallpaper not stretched for different screen resolutions Solve MenuDesktopNathan Wallpaper Setter Choose STRETCHED Radio Button 3) Notbook in Browser window give Page Load Error Solve: Wait till the sage server starts (in the console window) then press Button Try again. Comment: This should happen only at first start after boot. If you have a slow computer it might happen always. In that case you could edit the script /usr/bin/sagen.sh . Change sleep 3 to a higher value (or lower if good machine). 4) Menu-Fun-Jigsawpuzzle gives an error, because I removed a wallpaper. On Feb 20, 12:37 pm, Peter K.H. Gragert pkhgrag...@gmail.com wrote: Trying now Alex link ... 2010/2/20 PKHG pkhgrag...@gmail.com I tried a download ... but got only 359 MB? Trying to burn, complained about not correct lenght. So the dowload is 'wrong' I suppose Maybe share it at another 'host'? Greetings Peter On 17 feb, 20:40, emil emil.widm...@gmail.com wrote: Hi Jeff, sorry I wanted to post this on sage-devel originally and removed it, but then had no time to repost at sage devel (had to get membership first). Also sorry about any inconvenience with this download server. H. Schilly contacted me and maybe it will be available on the sage mirror soon. I append the original post, but I think this thread should be in sage- devel. I could need someone willing to try/test it and give feedback. regards emil ORIGINAL POST: Hello, I created a Live CD (or USB install) for Sage based on the small Puppy Linux distribution. Compared to the ubuntu based sage42lwlcd.iso there are more applications, Sage Doc and Tutorial. Also there is more bling i.e. nicer desktop appearance. Download: http://www.filehosting.org/file/details/113543/SageLivePupv02.iso 685 MB md5sum: 359f63129d4f3993bd890e4029b4d98f Since puppy linux is designed to be small and run well on low spec computers i figured it should be a good base platform for a big package like sage. I tested it on 1 GB, 1.6Ghz and it is quite responsive and workflow seems to be ok. I am no professional in the field and this is just a labor of love, but I think for some this alternative might be useful. It would be great if anybody could test it. A quick and easy method i.e is UNetbootin (no CD required). thanks in advance emil PS: I posted also on the PLinux Forum (screenshot there) http://www.murga-linux.com/puppy/viewtopic.php?t=52582 and in the sage-edu list. On Feb 17, 2:43 pm, Jeff Post j_p...@pacbell.net wrote: On Wednesday 17 February 2010 03:24, emil wrote: Download: http://www.filehosting.org/file/details/113543/SageLivePupv02.iso 685 MB md5sum: 359f63129d4f3993bd890e4029b4d98f If possible, please do not post your file on a system that requires a valid email address from the user in order to download. Many object to exposing themselves to possible spammers. Jeff -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.comsage-support%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL:http://www.sagemath.org -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Sage Live CD (Alternativ based on Puppy Linux)
Hello, I created a Live CD (or USB install) for Sage based on the small Puppy Linux distribution. Compared to the ubuntu based sage42lwlcd.iso there are more applications, Sage Doc and Tutorial. Also there is more bling i.e. nicer desktop appearance. Download: http://www.filehosting.org/file/details/113543/SageLivePupv02.iso 685 MB md5sum: 359f63129d4f3993bd890e4029b4d98f Since puppy linux is designed to be small and run well on low spec computers i figured it should be a good base platform for a big package like sage. I tested it on 1 GB, 1.6Ghz and it is quite responsive and workflow seems to be ok. I am no professional in the field and this is just a labor of love, but I think for some this alternative might be useful. It would be great if anybody could test it. A quick and easy method i.e is UNetbootin (no CD required). thanks in advance emil PS: I posted also on the PLinux Forum (screenshot there) http://www.murga-linux.com/puppy/viewtopic.php?t=52582 and in the sage-edu list. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
Hi Jeff, sorry I wanted to post this on sage-devel originally and removed it, but then had no time to repost at sage devel (had to get membership first). Also sorry about any inconvenience with this download server. H. Schilly contacted me and maybe it will be available on the sage mirror soon. I append the original post, but I think this thread should be in sage- devel. I could need someone willing to try/test it and give feedback. regards emil ORIGINAL POST: Hello, I created a Live CD (or USB install) for Sage based on the small Puppy Linux distribution. Compared to the ubuntu based sage42lwlcd.iso there are more applications, Sage Doc and Tutorial. Also there is more bling i.e. nicer desktop appearance. Download: http://www.filehosting.org/file/details/113543/SageLivePupv02.iso 685 MB md5sum: 359f63129d4f3993bd890e4029b4d98f Since puppy linux is designed to be small and run well on low spec computers i figured it should be a good base platform for a big package like sage. I tested it on 1 GB, 1.6Ghz and it is quite responsive and workflow seems to be ok. I am no professional in the field and this is just a labor of love, but I think for some this alternative might be useful. It would be great if anybody could test it. A quick and easy method i.e is UNetbootin (no CD required). thanks in advance emil PS: I posted also on the PLinux Forum (screenshot there) http://www.murga-linux.com/puppy/viewtopic.php?t=52582 and in the sage-edu list. On Feb 17, 2:43 pm, Jeff Post j_p...@pacbell.net wrote: On Wednesday 17 February 2010 03:24, emil wrote: Download: http://www.filehosting.org/file/details/113543/SageLivePupv02.iso 685 MB md5sum: 359f63129d4f3993bd890e4029b4d98f If possible, please do not post your file on a system that requires a valid email address from the user in order to download. Many object to exposing themselves to possible spammers. Jeff -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Sage Live CD (Alternativ based on Puppy Linux)
On Feb 18, 6:56 am, Alex Ghitza aghi...@gmail.com wrote: On Wed, 17 Feb 2010 21:06:51 -0800, Jeff Post j_p...@pacbell.net wrote: I'd love to test it. Please let us know when and from where the iso file can be downloaded anonymously. Yes, that's pretty annoying. I've gone through it, downloaded it and posted it at http://aghitza.org/misc/SageLivePupv02.iso Here is the md5sum to check if the download is ok: 359f63129d4f3993bd890e4029b4d98f I'll leave this up until a copy makes it onto the official Sage pages. Best, Alex -- Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne -- Australia --http://www.ms.unimelb.edu.au/~aghitza/ Thank you Alex for your help, Tt should be on the sage mirrors now! Feedback would be appreciated. emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Unable to run Live CD
Hello Robert, If you have more then 1.5 GB of RAM in your machine you might try my Live CD based on Puppy Linux (698 MB) download. Download: http://www.filehosting.at/file/details/111993/SageLive_Full.iso I published it on the sage edu channel recently. In the meantime I have solved some memory related issues and will post a version which should run on rather normal end user spec machines (tested now with 1 GB RAM and 1.6 Ghz processor, should also runs with 512 MB but not tested) soon. regards Emil On Feb 16, 7:41 am, David Kirkby david.kir...@onetel.net wrote: On 16 February 2010 02:01, Robert Veelenturf robert.veelent...@gmail.com wrote: On Feb 14, 5:19 pm, Dr. David Kirkby david.kir...@onetel.net wrote: What processor does your PC have in it? It is possible the Sage DVD is compiled assuming the CPU supports certain instructions, such as SSE, which if your CPU lacked, would cause a problem. I don't know anything much about the DVD, or how it was compiled, but it might be helpful if you state the CPU type. Dave Partial CPU-Z report output for the older of the 2 machines: Processor 1 ID = 0 Number of cores 1 (max 1) Number of threads 1 (max 1) NameIntel Celeron CodenameNorthwood Specification Intel(R) Celeron(R) CPU 2.20GHz Package (platform ID) Socket 478 mPGA (0x2) CPUID F.2.9 Extended CPUID F.2 Brand ID10 Core Stepping D1 Technology 0.13 um Core Speed 2193.4 MHz Multiplier x FSB22.0 x 99.7 MHz Rated Bus speed 398.8 MHz Stock frequency 2200 MHz Instructions sets MMX, SSE, SSE2 L1 Data cache 8 KBytes, 4-way set associative, 64-byte line size Trace cache 12 Kuops, 8-way set associative L2 cache128 KBytes, 2-way set associative, 64-byte line size FID/VID Control no Bob I know the Celeron is quite an old processor, but since your chip supports MMX, SSE and SSE2, I would have thought that is a sufficiently capable processor to run Sage. Does anyone know what the iso image needs in terms of instruction set from the CPU? On my own machine, which has a newer Xeon processor, 'iasinfo' on Solaris reports the following are supported: drkir...@hawk:~$ isainfo -v 64-bit amd64 applications sse4.2 sse4.1 ssse3 popcnt tscp cx16 mon sse3 pause sse2 sse fxsr mmx cmov amd_sysc cx8 tsc fpu 32-bit i386 applications sse4.2 sse4.1 ssse3 popcnt tscp ahf cx16 mon sse3 pause sse2 sse fxsr mmx cmov sep cx8 tsc fpu Does anyone here know if the DVD requires SSE3 for example, which would cause a failure with this Celeron? Dave -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
[sage-support] Re: Unable to run Live CD
Hello Robert, If you have more than 1.5 GB RAM in your machine you could try a SAGE Live version I recently posted in the sage-edu channel. Download is here: http://www.filehosting.at/file/details/111993/SageLive_Full.iso I solved the issues I had with the memory usage of this version. I might soon post a version which runs fine on 1 GB RAM (tested) and probably less (I think absolut Minimum is 512 MB RAM). regards emil On Feb 16, 3:01 am, Robert Veelenturf robert.veelent...@gmail.com wrote: On Feb 14, 5:19 pm, Dr. David Kirkby david.kir...@onetel.net wrote: Robert Veelenturf wrote: On Feb 12, 3:11 pm, David Kirkby david.kir...@onetel.net wrote: On 12 February 2010 18:12, Robert Veelenturf veelentu...@asme.org wrote: Hello, I was unable to run the Live CD version of Sage (sage42lwlcd.iso, using a flash drive) on two different machines, one of them less than a year old. It has not been tested adequately or it has unusual and unspecified (as far as I can tell) hardware requirements. Thanks PCs typically need changes in the bios to allow them to boot from flash drives. Dave Yes, the OS booted and I was able to launch Sage, but the window exited shortly thereafter. I was able to run Firefox. Bob What processor does your PC have in it? It is possible the Sage DVD is compiled assuming the CPU supports certain instructions, such as SSE, which if your CPU lacked, would cause a problem. I don't know anything much about the DVD, or how it was compiled, but it might be helpful if you state the CPU type. Dave Partial CPU-Z report output for the older of the 2 machines: Processor 1 ID = 0 Number of cores 1 (max 1) Number of threads 1 (max 1) NameIntel Celeron CodenameNorthwood Specification Intel(R) Celeron(R) CPU 2.20GHz Package (platform ID) Socket 478 mPGA (0x2) CPUID F.2.9 Extended CPUID F.2 Brand ID10 Core Stepping D1 Technology 0.13 um Core Speed 2193.4 MHz Multiplier x FSB22.0 x 99.7 MHz Rated Bus speed 398.8 MHz Stock frequency 2200 MHz Instructions sets MMX, SSE, SSE2 L1 Data cache 8 KBytes, 4-way set associative, 64-byte line size Trace cache 12 Kuops, 8-way set associative L2 cache128 KBytes, 2-way set associative, 64-byte line size FID/VID Control no Bob -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
