[sage-support] Re: installing binary of sage-3.4.1 OSX10.4 on G4
This problem is not unique, I am having the identical problem. No my system is not screwed up, nor is it anything to to with intel/powerpc mixup. When I click on the sage folder in the .dmg file, my cursor turns into to the international circle-with-slash. Downloaded several times, and tried to drag and copy on several flavors of mac. Is there a lock on the contents of the .dmg??? David Galant On May 2, 8:25 am, Michael Welsh yom...@yomcat.geek.nz wrote: Look in Console (in your Utilities Folder - cmd-shift-u). There might be something related in there. On 2/05/2009, at 2:31 PM, nickname wrote: When I say I cannot move the sage folder, I mean, it just jumps back into the .dmg package with NO complaints or error messages. I have no evidence of any problem with my OSX --http://yomcat.geek.nz --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Update R to the 2.9 release with milestone Sage 4.0
Hi Ticket #3086 states Update R to the 2.7 release and split off rpy.spkg with milestone Sage 4.0. If possible, two requests: 1) Update R to the latest 2.9 release (now sage 3.4 uses R version 2.6.1 (2007-11-26)) 2) To use R one has to load various additional packages. For instance I use the following lines: import rpy pack=[abind, distr, distrEx, e1071, effects, foreign, grid, lattice, lmtest, MASS, mgcv, multcomp,Rcmdr] for p in pack: r.install_packages(p) As the policy of Sage is all inclusive, I suggest rpy includes the most common R packages. Thanks in advance! Roland --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Update R to the 2.9 release with milestone Sage 4.0
On Sat, May 2, 2009 at 12:26 AM, Rolandb rola...@planet.nl wrote: Hi Ticket #3086 states Update R to the 2.7 release and split off rpy.spkg with milestone Sage 4.0. If possible, two requests: 1) Update R to the latest 2.9 release (now sage 3.4 uses R version 2.6.1 (2007-11-26)) 2) To use R one has to load various additional packages. For instance I use the following lines: import rpy pack=[abind, distr, distrEx, e1071, effects, foreign, grid, lattice, lmtest, MASS, mgcv, multcomp,Rcmdr] for p in pack: r.install_packages(p) As the policy of Sage is all inclusive, I suggest rpy includes the most common R packages. Thanks in advance! Is there any chance you could help with making the above happen? You might be the biggest user of R in Sage in the world. William --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: GAP still doesn't start in sage-3.4.1...
On Fri, May 1, 2009 at 11:13 PM, mabshoff michael.absh...@mathematik.uni-dortmund.de wrote: On May 1, 5:48 am, Johan Oudinet johan.oudi...@gmail.com wrote: On Fri, May 1, 2009 at 2:24 AM, mabshoff SNIP Hi Johan, Can you give a little more detail? By sheer accident it was just Well, this is exactly what I've done: 0) ssh to the server as a normal user. 1) download sage-3.4.1-linux-Debian_GNU_Linux_5.0_lenny-sse2-x86_64-Linux.tar.gz from France mirror 2) decompress it (tar xzf) 3) cd sage-3.4.1-linux-Debian_GNU_Linux_5.0_lenny-sse2-x86_64-Linux 4) ./sage Ok. Does gap start by itself, i.e. ./sage -gap? What more detail can I give you? $ uname -a Linux serveur-fortesse 2.6.24-22-xen #1 SMP Mon Nov 24 21:35:54 UTC 2008 x86_64 GNU/Linux revealed in IRC that inside a chroot env without the pty dev filesystem mounted pexpect obviously doesn't work. Any chance this is something that could have happened to you? I don't think so... AFAIK, I didn't run sage from a chroot env. But I don't know if 'pty dev filesystem' was mounted. What should I do to verify this? Please post the output of mount. I am not sure what else related to xen could be a factor here. $ mount /dev/hda1 on / type ext3 (rw,errors=remount-ro) tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) udev on /dev type tmpfs (rw,mode=0755) fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime) automount(pid2614) on /local type autofs (rw,fd=4,pgrp=2614,minproto=2,maxproto=4) automount(pid2642) on /users type autofs (rw,fd=4,pgrp=2642,minproto=2,maxproto=4) automount(pid2872) on /tmpsim type autofs (rw,fd=4,pgrp=2872,minproto=2,maxproto=4) automount(pid2962) on /special type autofs (rw,fd=4,pgrp=2962,minproto=2,maxproto=4) netapp2:/vol/Logiciels/Fortesse on /special/fortesse type nfs (rw,intr,soft,addr=129.175.1.2) netapp-11:/vol/Equipe_asspro/asspro on /users/asspro type nfs (rw,nosuid,intr,hard,tcp,timeo=600,retrans=2,addr=129.175.1.7) And I try to run Sage from /users/asspro Have you used and/or installed another version of GAP independently of Sage? No. Is there any Sage release that ever worked on your platform? No (I've tried since Sage-3.2.3) -- Johan () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: GAP still doesn't start in sage-3.4.1...
On May 2, 1:29 am, William Stein wst...@gmail.com wrote: On Sat, May 2, 2009 at 1:27 AM, Johan Oudinet johan.oudi...@gmail.com wrote: SNIP $ mount /dev/hda1 on / type ext3 (rw,errors=remount-ro) tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755) proc on /proc type proc (rw,noexec,nosuid,nodev) sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) udev on /dev type tmpfs (rw,mode=0755) fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime) automount(pid2614) on /local type autofs (rw,fd=4,pgrp=2614,minproto=2,maxproto=4) automount(pid2642) on /users type autofs (rw,fd=4,pgrp=2642,minproto=2,maxproto=4) automount(pid2872) on /tmpsim type autofs (rw,fd=4,pgrp=2872,minproto=2,maxproto=4) automount(pid2962) on /special type autofs (rw,fd=4,pgrp=2962,minproto=2,maxproto=4) netapp2:/vol/Logiciels/Fortesse on /special/fortesse type nfs (rw,intr,soft,addr=129.175.1.2) netapp-11:/vol/Equipe_asspro/asspro on /users/asspro type nfs (rw,nosuid,intr,hard,tcp,timeo=600,retrans=2,addr=129.175.1.7) And I try to run Sage from /users/asspro Ok. Is there enough space so you could try doing everything in /tmp or /local or some other *non*-NSF local partition? Gonzalo had the exact same problem about GAP not starting up when he was playing around with a Debian chroot env and it turned out that he needed to mount devpts. According to the output above that (pseudo) filesystem is not mounted, so before trying anything else I would recommend to mount it. The kernel might or might not support it out of the box (since it is a Debian kernel it should). devpts should be mounted by udev it seems per default, but check out http://linux.derkeiler.com/Newsgroups/comp.os.linux.setup/2005-03/0473.html on how to mount it. If this turns out to the cause it seems well worth an entry in the FAQ as well as README.txt since this is a rather obscure problem. Even adding a check in Sage somewhere to verify that the devpts is mounted on startup of Sage might be worth it. william Cheers, Michael --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Help on creating packages/modules
Dear Sage-Support,
off-list, Robert pointed me to the source of the problem.
In my original setup.py, I used the optional parameter ext_package,
according to http://docs.python.org/distutils/setupscript.html:
-
If you have a number of extensions all in the same package (or all
under the same base package), use the ext_package keyword argument to
setup(). For example,
setup(...,
ext_package='pkg',
ext_modules=[Extension('foo', ['foo.c']),
Extension('subpkg.bar', ['bar.c'])],
)
will compile foo.c to the extension pkg.foo, and bar.c to
pkg.subpkg.bar.
Robert pointed out that this is not supported by Cython. With
examples, we found that it *is* supported if one only has .pyx-files,
but it fails as soon as one has .pxd-files. One has to provide the
fully qualified package name.
Moreover, in order to get the right package name hardcoded into the
modules, the source directory names have to match the package name.
I changed my sources and setup.py accordingly, removed the build/
directory that was created by python setup.py install, and tried
again -- and still it failed!
Robert then pointed out that it does not suffice to remove (or empty)
the build/ directory --- I was not aware that the Cython-generated c-
files for the extension modules reside in the source directory. They
have to be removed, too, before rebuilding.
Now it works, including pickling.
Thank you, Robert!
Simon
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[sage-support] Re: memory leak?
When an elliptic curve is created the code in the __init__ function in ell_generic.py (lines 164-5) do cause a multivariate polynomial ring to be created. In this case it's a new ring each time as the base field is always a new field. The reason this is done is that the elliptic curve class derives from the plane curve class, which is created from a homogeneous polynomial in three variables. However at least 95% (at a guess) of elliptic curve functionality does not depend at all on the base class (one exception is checking that points lie on the curve, and even that was not the case until the recent patch by Alex Ghitza). So, when you create a large number of curves over different fields you do also create all these rings. However, in the example in the original post, these elliptic curves do not remain in scope, so I don't know why the rings are not garbage-collected away. John On May 1, 10:00 pm, mabshoff michael.absh...@mathematik.uni- dortmund.de wrote: On May 1, 12:12 pm, Robert Bradshaw rober...@math.washington.edu wrote: SNIP No that I have a clue how to debug this, so I will poke RobertWB - I am sure he has nothing better to do that to dive into this problem and will be happy to debug this ;) Yep, I bet coercion is leaking rings. I'll look at this during Sage days, if not sooner. Thanks, I ought to look over your shoulder to get an idea on how to attack those leaks in the future :) - Robert Cheers, Michael --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: memory leak?
Dear John, On 2 Mai, 18:39, John Cremona john.crem...@gmail.com wrote: When an elliptic curve is created the code in the __init__ function in ell_generic.py (lines 164-5) do cause a multivariate polynomial ring to be created. In this case it's a new ring each time as the base field is always a new field. How is the multivariate polynomial ring created? I remember that recently Martin Albrecht was fixing some bug: Here, a multivariate polynomial ring was created without using the PolynomialRing constructor, violating uniqueness of parents. But if, in your case, you create a polynomial ring, work with it, and then want it to be garbage collected, then perhaps it would be a good idea to *not* use the PolynomialRing constructor: If the resulting ring is cached (- uniqueness of Parent Structures) then it would not be garbage collected, or would it? Best regards, Simon --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: memory leak?
On May 2, 5:55 pm, simon.k...@uni-jena.de wrote: Dear John, On 2 Mai, 18:39, John Cremona john.crem...@gmail.com wrote: When an elliptic curve is created the code in the __init__ function in ell_generic.py (lines 164-5) do cause a multivariate polynomial ring to be created. In this case it's a new ring each time as the base field is always a new field. How is the multivariate polynomial ring created? First the projective plane is constructed, effectively by PP=ProjectiveSpace(2,K), and then the ring by PP.coordinate_ring(), which calls PolynomialRing(self.base_ring(), self.variable_names(), self.dimension_relative()+1) so in effect we call PolynomialRing(K). John I remember that recently Martin Albrecht was fixing some bug: Here, a multivariate polynomial ring was created without using the PolynomialRing constructor, violating uniqueness of parents. But if, in your case, you create a polynomial ring, work with it, and then want it to be garbage collected, then perhaps it would be a good idea to *not* use the PolynomialRing constructor: If the resulting ring is cached (- uniqueness of Parent Structures) then it would not be garbage collected, or would it? Best regards, Simon --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Sage RSS reader in firefox and .xml .rss in SAGE
Sage RSS reader really does have a nice look. Its simplicity and integration with firefox bookmarks are very useful. What I'm thinking now is how it could be interesting to follow publishing of new notebooks of my colleagues at their own institutional Sage servers. It just needs to put XML file into /pub directory when you are publishing notebook and then someone subscribes for this RSS with any RSS reader (preferably Sage) to read about new sage notebooks. I will try to find out how to do that. Suggestions are welcome. Serge Serge Salamanka пишет: I've just remembered about the Sage RSS reader and an idea to integrate it with SAGE came to mind. It would be very useful to have a possibility of publishing information about new worksheets available or updates or anything else in RSS format and very nice to read using Sage RSS reader plugin for firefox. Don't know whether it has already been discussed but post it to the list for developers attention... Serge --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] [help!] problem with sage-vmware 3.4.1 on windows xp
Hello to everybody. I can't make Sage works on windows and I'm going crazy. When typing sage or notebook on the welcome screen of the VMware Player nothing happens. If I type manage and then sage the following message appears: -- | Sage Version 3.4.1, (etc..) | -- usr/local/sage/local/bin/sage-sage: line 198: 3558 Illegal instruction sage-ipython $@ -i What have I missed? VMware 2.5.2 on Windows XP sp3 . AMD Athlon 64 Processor 3000+ 2.00 GHz, 1.50 GB Ram 0 MB Paging File Is it possible that my processor is obsolete for this version of Sage? I've set my paging file to 0 MB. Could it be a problem? Thanks in advance. Alessandro --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Numerical precision
Sorry, I thought the discussion wouldn't appear. I did a more detailed post about the same question, here is the link http://groups.google.com/group/sage-support/browse_thread/thread/ba920658ffcac2d1 I am so sorry, Fidel On May 2, 1:03 pm, Fidel fidel.barr...@gmail.com wrote: Hello, I'm working in sage 3.4.1. I have a variable, x=6.12303176911189e-17, which I got from sage: x=graphs.PetersenGraph().get_pos()[0][0] I would like to ask sage to approximate te value of x up to two decimals, that is, 0.00. This is what I have tried sage: numerical_approx(x,digits=2) 6.1e-17 sage: n(x,digits=2) 6.1e-17 Is there a way of getting 0.00 as output? Thank you very much for your attention. Greetings, Fidel --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Numerical approximation
Hello, I think I tried to post this about an hour ago, but the discussion didn't show up. So I'm doing it again, sorry in case it is repeated. I am working in sage 3.4.1 I am trying to define a function to get the LaTeX string of a graph, so I am trying to convert a number to string. I have x=6.1230317691118863e-17, which I got from sage: x=graphs.PetersenGraph().get_pos()[0][0] I would like a two decimal approximation of x, that is 0.00. I have tried sage: numerical_approx(x,digits=2) 6.1e-17 sage: n(x,digits=2) 6.1e-17 Is there a way to get 0.00 as output? Thanks in advance for your attention and help. Greetings, Fidel --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Numerical approximation
sage: round(x,2) 0.0 To show it really does what you want: sage: round(1.2345,2) 1.23 On May 2, 8:35 pm, Fidel fidel.barr...@gmail.com wrote: Hello, I think I tried to post this about an hour ago, but the discussion didn't show up. So I'm doing it again, sorry in case it is repeated. I am working in sage 3.4.1 I am trying to define a function to get the LaTeX string of a graph, so I am trying to convert a number to string. I have x=6.1230317691118863e-17, which I got from sage: x=graphs.PetersenGraph().get_pos()[0][0] I would like a two decimal approximation of x, that is 0.00. I have tried sage: numerical_approx(x,digits=2) 6.1e-17 sage: n(x,digits=2) 6.1e-17 Is there a way to get 0.00 as output? Thanks in advance for your attention and help. Greetings, Fidel --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Numerical precision
Hello, I'm working in sage 3.4.1. I have a variable, x=6.12303176911189e-17, which I got from sage: x=graphs.PetersenGraph().get_pos()[0][0] I would like to ask sage to approximate te value of x up to two decimals, that is, 0.00. This is what I have tried sage: numerical_approx(x,digits=2) 6.1e-17 sage: n(x,digits=2) 6.1e-17 Is there a way of getting 0.00 as output? Thank you very much for your attention. Greetings, Fidel --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: installing binary of sage-3.4.1 OSX10.4 on G4
This problem is just that the folder sage in the dmg cannot be copied. However, the contents of the folder _can_ be copied, so the solution is to create a folder somewhere on the machine hard disk (or an external disk) and copy the contents of the folder sage on the dmg to the new folder. David Galant On May 2, 9:34 am, curious davidgal...@gmail.com wrote: This problem is not unique, I am having the identical problem. No my system is not screwed up, nor is it anything to to with intel/powerpc mixup. When I click on the sage folder in the .dmg file, my cursor turns into to the international circle-with-slash. Downloaded several times, and tried to drag and copy on several flavors of mac. Is there a lock on the contents of the .dmg??? David Galant On May 2, 8:25 am, Michael Welsh yom...@yomcat.geek.nz wrote: Look in Console (in your Utilities Folder - cmd-shift-u). There might be something related in there. On 2/05/2009, at 2:31 PM, nickname wrote: When I say I cannot move the sage folder, I mean, it just jumps back into the .dmg package with NO complaints or error messages. I have no evidence of any problem with my OSX --http://yomcat.geek.nz --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: installing binary of sage-3.4.1 OSX10.4 on G4
Thank you very much! This may have worked. When first started, sage complained about not have the folder spkg. In fact, it did not and I just added the older one from 3.4. I hope that's OK. armand On May 2, 3:08 pm, curious davidgal...@gmail.com wrote: This problem is just that the folder sage in the dmg cannot be copied. However, the contents of the folder _can_ be copied, so the solution is to create a folder somewhere on the machine hard disk (or an external disk) and copy the contents of the folder sage on the dmg to the new folder. David Galant On May 2, 9:34 am, curious davidgal...@gmail.com wrote: This problem is not unique, I am having the identical problem. No my system is not screwed up, nor is it anything to to with intel/powerpc mixup. When I click on the sage folder in the .dmg file, my cursor turns into to the international circle-with-slash. Downloaded several times, and tried to drag and copy on several flavors of mac. Is there a lock on the contents of the .dmg??? David Galant On May 2, 8:25 am, Michael Welsh yom...@yomcat.geek.nz wrote: Look in Console (in your Utilities Folder - cmd-shift-u). There might be something related in there. On 2/05/2009, at 2:31 PM, nickname wrote: When I say I cannot move the sage folder, I mean, it just jumps back into the .dmg package with NO complaints or error messages. I have no evidence of any problem with my OSX --http://yomcat.geek.nz --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: [help!] problem with sage-vmware 3.4.1 on windows xp
On Sat, May 2, 2009 at 8:53 AM, Alessandro Torre adessobastadavv...@gmail.com wrote: Hello to everybody. I can't make Sage works on windows and I'm going crazy. When typing sage or notebook on the welcome screen of the VMware Player nothing happens. If I type manage and then sage the following message appears: -- | Sage Version 3.4.1, (etc..) | -- usr/local/sage/local/bin/sage-sage: line 198: 3558 Illegal instruction sage-ipython $@ -i What have I missed? VMware 2.5.2 on Windows XP sp3 . AMD Athlon 64 Processor 3000+ 2.00 GHz, 1.50 GB Ram 0 MB Paging File Is it possible that my processor is obsolete for this version of Sage? Yes. What is the output of cat /proc/cpuinfo after you login as manage? Anyway, you might have to build Sage from source. This is actually easier than you might think. Do all of the following after login as manage and typing sudo su. 1. Delete /usr/local/sage, then cd /usr/local; rm -rf sage 2. download sage-3.4.1.tar by typing wget http://sagemath.org/src/sage-3.4.1.tar 3. extract it, tar xf sage-3.4.1.tar 4. move it to be /usr/local/sage, and mv sage-3.4.1 sage 5. build Sage -- this will take a few hours (no manual intervention): cd sage; make I've set my paging file to 0 MB. Could it be a problem? You could try setting it larger and see what happens. -- William --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Sage RSS reader in firefox and .xml .rss in SAGE
On Sat, May 2, 2009 at 11:01 AM, Serge Salamanka salsa-...@tut.by wrote: Sage RSS reader really does have a nice look. Its simplicity and integration with firefox bookmarks are very useful. What I'm thinking now is how it could be interesting to follow publishing of new notebooks of my colleagues at their own institutional Sage servers. It just needs to put XML file into /pub directory when you are publishing notebook and then someone subscribes for this RSS with any RSS reader (preferably Sage) to read about new sage notebooks. I will try to find out how to do that. Suggestions are welcome. You would have to modify SAGE_ROOT/devel/sage/sage/server/notebook/twist.py and add a new resource that serves up the XML file. It's pretty amusing to combine the two sages :-) William Serge Serge Salamanka пишет: I've just remembered about the Sage RSS reader and an idea to integrate it with SAGE came to mind. It would be very useful to have a possibility of publishing information about new worksheets available or updates or anything else in RSS format and very nice to read using Sage RSS reader plugin for firefox. Don't know whether it has already been discussed but post it to the list for developers attention... Serge -- William Stein Associate Professor of Mathematics University of Washington http://wstein.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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: installing binary of sage-3.4.1 OSX10.4 on G4
On May 2, 2009, at 12:08 PM, curious wrote: This problem is just that the folder sage in the dmg cannot be copied. However, the contents of the folder _can_ be copied, so the solution is to create a folder somewhere on the machine hard disk (or an external disk) and copy the contents of the folder sage on the dmg to the new folder. I think that the issue is that the .dmg is mounted as a read-only disk image. The intent of the .dmg is to act as a distribution alternative to DVDs (so you can download them, instead of waiting for them to arrive in the mail :-}). Justin -- Justin C. Walker Curmudgeon at Large Director Institute for the Enhancement of the Director's Income -- Build a man a fire and he'll be warm for a night. Set a man on fire and he'll be warm for the rest of his life. --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Sage RSS reader in firefox and .xml .rss in SAGE
William Stein пишет: On Sat, May 2, 2009 at 11:01 AM, Serge Salamanka salsa-...@tut.by wrote: Sage RSS reader really does have a nice look. Its simplicity and integration with firefox bookmarks are very useful. What I'm thinking now is how it could be interesting to follow publishing of new notebooks of my colleagues at their own institutional Sage servers. It just needs to put XML file into /pub directory when you are publishing notebook and then someone subscribes for this RSS with any RSS reader (preferably Sage) to read about new sage notebooks. I will try to find out how to do that. Suggestions are welcome. You would have to modify SAGE_ROOT/devel/sage/sage/server/notebook/twist.py and add a new resource that serves up the XML file. It is quite new to me but very interesting. I'll search for a python script to create XML files for RSS feeds. I would appreciate if you could describe shortly the steps to add such functionality as a guideline for a newbie developer. It's pretty amusing to combine the two sages :-) William ... and a combiner is Serge :))) (that mostly amuses me) Serge Serge Salamanka пишет: I've just remembered about the Sage RSS reader and an idea to integrate it with SAGE came to mind. It would be very useful to have a possibility of publishing information about new worksheets available or updates or anything else in RSS format and very nice to read using Sage RSS reader plugin for firefox. Don't know whether it has already been discussed but post it to the list for developers attention... Serge --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: [help!] problem with sage-vmware 3.4.1 on windows xp
On May 2, 2:04 pm, William Stein wst...@gmail.com wrote: On Sat, May 2, 2009 at 8:53 AM, Alessandro Torre SNIP Is it possible that my processor is obsolete for this version of Sage? Yes. What is the output of cat /proc/cpuinfo I doubt this will be helpful. Having thought about this for a while my guess is that some of the instructions used in MPIR might cause this. When I wrote a script to detect advanced instructions I only concentrated on SSE instructions since back then it was the major (and only known) problem. If gdb is installed in the VMWare image we can start Sage under gdb, get a back trace (to figure out which library it is) and then disassemble around the current pc so that I can fix this :) So far no one has provided information to what is wrong, i.e. which instruction[s] in what library causes this, so I cannot even start to fix this. Cheers, Michael --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Update R to the 2.9 release with milestone Sage 4.0
Release 4.0 is soon. So I suggest we split the work. 1) Update R to the latest 2.9 release (ticket #3086) I have no development experiences, but I assume that updating is a straightforward activity (but maybe I'm wrong). 2) Loading common packages in advance. After release 4.0 we look how many users have the same needs. If its really worthwhile, we can consider to take the next step. Roland On 2 mei, 09:30, William Stein wst...@gmail.com wrote: On Sat, May 2, 2009 at 12:26 AM, Rolandb rola...@planet.nl wrote: Hi Ticket #3086 states Update R to the 2.7 release and split off rpy.spkg with milestone Sage 4.0. If possible, two requests: 1) Update R to the latest 2.9 release (now sage 3.4 uses R version 2.6.1 (2007-11-26)) 2) To use R one has to load various additional packages. For instance I use the following lines: import rpy pack=[abind, distr, distrEx, e1071, effects, foreign, grid, lattice, lmtest, MASS, mgcv, multcomp,Rcmdr] for p in pack: r.install_packages(p) As the policy of Sage is all inclusive, I suggest rpy includes the most common R packages. Thanks in advance! Is there any chance you could help with making the above happen? You might be the biggest user of R in Sage in the world. William --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Update R to the 2.9 release with milestone Sage 4.0
On May 2, 3:27 pm, Rolandb rola...@planet.nl wrote: Release 4.0 is soon. So I suggest we split the work. 1) Update R to the latest 2.9 release (ticket #3086) I have no development experiences, but I assume that updating is a straightforward activity (but maybe I'm wrong). I doubt it will be straightforward - nothing ever is :). R has suggested in 2.6 that some time in the future libintl will be mandatory. If that is the case we will have problems. Cheers, Michael --~--~-~--~~~---~--~~ 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 URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: memory leak?
When an elliptic curve is created the code in the __init__ function in
ell_generic.py (lines 164-5) do cause a multivariate polynomial ring
to be created. In this case it's a new ring each time as the base
field is always a new field.
How is the multivariate polynomial ring created?
First the projective plane is constructed, effectively by
PP=ProjectiveSpace(2,K), and then the ring by PP.coordinate_ring(),
which calls
PolynomialRing(self.base_ring(),
self.variable_names(),
self.dimension_relative()+1)
so in effect we call PolynomialRing(K).
John
Well, is there any way to avoid this? It seems like a bad thing to
waste a couple GB on rings that in the end aren't used any more once
the curve E is delete.
I can confirm (if there was any doubt) that one can try
{{{
for p in prime_range(upper):
R.x, y, z = PolynomialRing(GF(p), 3)
}}}
and watch it eat 800MB of RAM.
I can see good reasons why we want the current behaviour of
uniqueness of parents, and what we just saw here is a good reason
why we might *not* want it. How can we reconcile this? Can we make
it easy to turn off uniqueness of parents in some situations?
Best,
Alex
--
Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne
-- Australia -- http://www.ms.unimelb.edu.au/~aghitza/
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[sage-support] Re: memory leak?
On May 2, 2009, at 8:42 PM, Alex Ghitza wrote:
When an elliptic curve is created the code in the __init__
function in
ell_generic.py (lines 164-5) do cause a multivariate polynomial
ring
to be created. In this case it's a new ring each time as the base
field is always a new field.
How is the multivariate polynomial ring created?
First the projective plane is constructed, effectively by
PP=ProjectiveSpace(2,K), and then the ring by PP.coordinate_ring(),
which calls
PolynomialRing(self.base_ring(),
self.variable_names(),
self.dimension_relative()+1)
so in effect we call PolynomialRing(K).
John
Well, is there any way to avoid this? It seems like a bad thing to
waste a couple GB on rings that in the end aren't used any more once
the curve E is delete.
I can confirm (if there was any doubt) that one can try
{{{
for p in prime_range(upper):
R.x, y, z = PolynomialRing(GF(p), 3)
}}}
and watch it eat 800MB of RAM.
I can see good reasons why we want the current behaviour of
uniqueness of parents, and what we just saw here is a good reason
why we might *not* want it. How can we reconcile this? Can we make
it easy to turn off uniqueness of parents in some situations?
We can have uniqueness and collection--it's called weakrefs. I
suspect part of the problem is that the coercion model doesn't use
them enough (there's places I meant to go back to and add them in).
- Robert
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