[sage-support] Re: Associated coroot depending on space
I'm forwarding to the sage-combinat group, where the people who know this code well have a better chance of seeing it. On 05/12/2011 06:19 PM, Matthias wrote: Hi, i don't really know whether this is a bug, but at least it seems a bit odd to me (are alphacheck supposed to have different meanings in the spaces?): R = RootSystem(['A',3]) wgtsp = R.weight_space() rootsp = R.root_space() a = wgtsp.simple_roots()[1] b = rootsp.simple_roots()[1] a.associated_coroot() 4/5*alphacheck[1] - 2/5*alphacheck[2] b.associated_coroot() alphacheck[1] In general is there a way to specify a basis of a ?free module? (whatever is behind the spaces) and make sage express everything in this basis? Best regards Matthias -- 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: Ring Problem
And two fewer than that... sage: Zmod(5) Ring of integers modulo 5 (Sorry, couldn't resist.) On 01/04/2011 11:33 AM, Volker Braun wrote: You can even shave off two more key strokes and type: sage: ZZ.quo(5) Ring of integers modulo 5 :-) -- 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] Re: creating a test environment
On 09/29/2010 01:47 PM, Johannes wrote: Hi list, is it possible to create in a given environment in sage a new one, which know all in the parent defined variables and values, and i i leave it again, ijust get back to my old values? Is this what you're looking for? http://www.sagemath.org/doc/tutorial/interactive_shell.html#section-save Cheers, Jason -- 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: Implication
Hello, For polynomial equations, the following should work in general. sage: R.x,y = CC['x','y'] sage: f = x-y sage: g = x^2 - y^2 sage: I = R.ideal([f]).radical() sage: g in I True In general, to see if the equation g == 0 is implied by the equations f1==0, f2==0, ..., fn==0 you can do I = R.ideal([f1, f2, ..., fn]).radical() g in I and sage should appropriately return True or False. I should mention that I don't actually use this very much, so there may be some caveats that I'm not aware of. -Jason On 09/03/2010 12:30 PM, tvn wrote: Hi, I wonder if there's any 'imply' kind of function in Sage ? For example eq1 = x -y == 0 eq2 = x^2 - y^2 == 0 eq1 implies eq2(but not the other way around). If no then is there any efficient way to do it ?one way I can think of (that might not work) is get the factor_list of eq1 and eq2 , if eq2 has a factor that is the same as eq1 then eq1 implies eq2-- something like that. -- 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: quickhand vector
I'm not sure I completely understand your question, but maybe this
response will contain all the ingredients you need.
First, since you are working with polynomials, I suggest creating a
polynomial ring in the variables x and y, and then your polynomial f.
sage: R.x,y = QQ['x,y']
sage: f = 3*x^2 + 2*x*y - y^3
Now we can find specific coefficients and degrees as follows:
sage: f.coefficient({x:1, y:1})
2
sage: f.coefficient({x:2, y:0})
3
sage: f.degree(x)
2
sage: f.degree(y)
3
Now we can write a function that will give us a matrix entry if we pass
in i,j and f.
def matrix_entry(i,j,f):
return f.coefficient({x:i, y:j})
Now we can create a matrix as follows:
sage: M = matrix( [[ matrix_entry(i,j,f) for i in xrange(f.degree(x)+1)]
for j in xrange(f.degree(y)+1)])
sage: print M
[ 0 0 3]
[ 0 2 0]
[ 0 0 0]
[-1 0 0]
Notice that the indices (i,j) begin at 0. Hope that helps.
Good luck,
Jason
On 09/01/2010 10:21 AM, andrew ewart wrote:
i dont think my previous example was clear so ill try to do a new one
that achieves the same result
let F=f(x,y) where degx is the degree of F wrt x and degy is the degree
of F wrt y
G=f(t,z)
got vector (G^0,G^1,G^2,...,G^degx)
G=f(t,z)=(a_0,0+a_0,1*t+..+a_0,degx-1*t^(degx-1))+(a_1,0+...)*z+(...)*z^2+...+(...)z^d
where d=2*degx*degy
So want matrix of of dimension ((d+1)*degx)*((degy+1)*degx+(d+1)*degx),
and of form
(G^0...G^0|G^1...G^1||G^(degx-1)...G^(degx-1)|Idenity((d+1)*degx))
where each term is like the form as descibed for G
(F and G r given so thats not a problem)
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[sage-support] Re: quickhand vector
Is this what you want? sage: v = vector(2^i for i in xrange(1,10)) sage: print v (2, 4, 8, 16, 32, 64, 128, 256, 512) -Jason -- 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: numerical evaluation
Hi, On 08/23/2010 03:42 PM, robin hankin wrote: I tried this: roots = solve(x^3+10*x^2+11*x+8==0,x) SNIP The best I can do is N(roots[1].rhs()) but this is just one at a time. How do I make N() operate on all of roots? You may like for r in roots: print N(r.rhs()) or [N(r.rhs()) for r in roots] Cheers, Jason -- 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: Permutations with itertools.chain
Hello, I think this is normal. Perhaps you meant the following (note the * which expands the single argument into its components): sage: for x in itertools.chain(*itertools.imap(Permutations,range(4))): print x [] [1] [1, 2] [2, 1] [1, 2, 3] [1, 3, 2] [2, 1, 3] [2, 3, 1] [3, 1, 2] [3, 2, 1] Best, Jason William Laffin wrote: Hello helpful sage-support list! Is this the following normal behavior? sage: import itertools sage: for x in itertools.imap(Permutations,range(4)): .: for y in x: .: print y .: [] [1] [1, 2] [2, 1] [1, 2, 3] [1, 3, 2] [2, 1, 3] [2, 3, 1] [3, 1, 2] [3, 2, 1] sage: for x in itertools.chain(itertools.imap(Permutations,range(4))): print x .: Standard permutations of 0 Standard permutations of 1 Standard permutations of 2 Standard permutations of 3 sage: thanks, William Laffin Michigan Tech -- 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, reply using remove me as the subject.
[sage-support] Re: Inverses of Large Sparse Matrices
Leo Maloney wrote: I'm trying to compute the inverse of a 5000 x 5000 sparse matrix. I'm getting an EOF error after it runs for about 5 hours, and then it states that sage is trying to access unallocated memory. Is there a way I can increase the memory for this computation? Every time I Google it, all I can find is the benefits sage(plant) has on memory. Thanks, Leo Have you tried converting to a dense matrix first? sage: m = # whatever 5000x5000 sparse matrix you want sage: n = ~(m.dense_matrix()) IIRC there are some methods on sparse matrices which are implemented in completely naive ways. -Jason -- 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, reply using remove me as the subject.
[sage-support] Re: Substitution
Hi, I think what Minh was trying to say is that these lines: Stochastix wrote: sage: a=lambda x: alpha*x-mu1+mu2 sage: f=lambda x: (a(x)*b-c+sqrt((a(x)*b-c)^2+4.0*a(x)*b*r*mu1))/(2*a (x)*mu1) sage: g=lambda x: (r+l-mu1*f(x))/mu2 sage: prev=lambda x: f(x)/(f(x)+g(x)) sage: k=lambda x: diff(prev(x),x) should instead be written as a = alpha*x-mu1+mu2 f = (a(x)*b-c+sqrt((a(x)*b-c)^2+4.0*a(x)*b*r*mu1))/(2*a(x)*mu1) ... Or, if you prefer, a(x) = alpha*x-mu1+mu2 f(x) = ... etc. When you define functions this way, they become elements of the 'SymbolicRing' which Sage has a lot of tools to deal with. Defining them with 'lambda' makes them pure Python functions, which are not as flexible. sage: k(x).subs(x=0.03) 0.0262047639227205 By the way, there is something still puzzling me. The equivalent Maple code gives a value of .883. Who should I believe ? If you fix the errors as above, do you still get different answers in Maple and Sage? Best, Jason -- 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: Removing objects from lists; keeping original list unchanged?
Alasdair wrote: This is more of a python question than a Sage question, but anyway...I'm trying to iterate over a list, producing a sequence of new lists, each of which is obtained from the original list by deleting one object. I've tried: for x in lst: lstc=copy(lst) print lstc.remove(x) But this doesn't work - can anybody tell me what I'm doing wrong, and what I should be doing? I can get the effect I want by iterating over the indices of the list, but I'd like to know why this little snippet of code doesn't work. The problem is that lstc.remove(x) modifies lstc in place and doesn't return anything. So you aren't printing anything. The following should do what you want: for x in lst: lstc = copy(lst) lstc.remove(x) print lstc HTH, Jason --~--~-~--~~~---~--~~ 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] sagenb appears to be down...
...or is it just me? TIA, Jason --~--~-~--~~~---~--~~ 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: sagenb appears to be down...
William Stein wrote: On Mon, May 25, 2009 at 4:58 PM, Jason Bandlow jband...@gmail.com wrote: ...or is it just me? it's indeed down. I'll restart all the sagenb servers right now. They'll be back in 5 minutes. Thanks! -Jason --~--~-~--~~~---~--~~ 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: characters of the symmetric group
David Joyner wrote: On Tue, May 12, 2009 at 6:43 PM, amps arat...@gmail.com wrote: I see that there is a function to compute the character table of the symmetric group, but is there one where you input two partitions and it outputs the value of the character indexed by the first partition evaluated at the second? I have been searching for some time and can't find the answer. I don't know either and would be interested as well. Do you know how to do this in GAP? One way is to use symmetric function theory: sage: s = SFASchur(QQ); p = SFAPower(QQ) sage: s(p([2,2])).coefficient([3,1]) -1 This says that the value of the irreducible character indexed by the partition (3,1) is -1 when evaluated on a conjugacy class of size (2,2). Cheers, Jason --~--~-~--~~~---~--~~ 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: Strange behavior on sagenb
William Stein wrote:
On Thu, Mar 26, 2009 at 8:50 AM, Jason Bandlow jband...@gmail.com wrote:
Hi all,
When I start up a clean version of sage 3.4 on my local machine and
enter the following into a notebook cell:
M=load('http://www.math.upenn.edu/~jbandlow/sage_data/dic_of_kst_to_G_cob_mats.sobj')
# This object is a dictionary
key = (1, Partition([1]),Partition([2]))
print key in M.keys()
M[key]
I get the following (correct) output:
Attempting to load remote file:
http://www.math.upenn.edu/~jbandlow/sage_data/dic_of_kst_to_G_cob_mats.s\
obj
Loading: [..]
True
# A matrix that I won't reproduce here
When I enter the exact same text in a notebook cell on sagenb, I get the
following output:
Attempting to load remote file:
http://www.math.upenn.edu/~jbandlow/sage_data/dic_of_kst_to_G_cob_mats.s\
obj
Loading: [..]
True
Traceback (most recent call last):
File stdin, line 1, in module
File
/home/sage/sagenb/sage_notebook/worksheets/jbandlow/11/code/41.py,
line 10, in module
M[key]
File
/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/SQLAlchemy-0.4.6-py2.5.egg/,
line 1, in module
KeyError: (1, [1], [2])
Why am I getting a KeyError if key in M.keys() is returning True? And
why is the behavior on sagenb different than on my local, 3.4
built-from-source on Ubuntu 10.8 distribution?
Any ideas are very welcome!
I'm guessing this is a subtle 32 versus 64-bit issue involving
pickling and assumptions made somewhere in the combinat or other sage
code involving 32/64-bit. The notebook is 64-bit and I bet your
computer is 32-bit.
By the way, this works on the notebook in the context of your session above:
for a, b in M.iteritems():
if a == key: print b
Thanks William! This does seem likely to be the problem. I'll do more
investigation when I get a chance and see if I can find out precisely
where the problem is.
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[sage-support] Strange behavior on sagenb
Hi all,
When I start up a clean version of sage 3.4 on my local machine and
enter the following into a notebook cell:
M=load('http://www.math.upenn.edu/~jbandlow/sage_data/dic_of_kst_to_G_cob_mats.sobj')
# This object is a dictionary
key = (1, Partition([1]),Partition([2]))
print key in M.keys()
M[key]
I get the following (correct) output:
Attempting to load remote file:
http://www.math.upenn.edu/~jbandlow/sage_data/dic_of_kst_to_G_cob_mats.s\
obj
Loading: [..]
True
# A matrix that I won't reproduce here
When I enter the exact same text in a notebook cell on sagenb, I get the
following output:
Attempting to load remote file:
http://www.math.upenn.edu/~jbandlow/sage_data/dic_of_kst_to_G_cob_mats.s\
obj
Loading: [..]
True
Traceback (most recent call last):
File stdin, line 1, in module
File
/home/sage/sagenb/sage_notebook/worksheets/jbandlow/11/code/41.py,
line 10, in module
M[key]
File
/home/sage/sage_install/sage-a/local/lib/python2.5/site-packages/SQLAlchemy-0.4.6-py2.5.egg/,
line 1, in module
KeyError: (1, [1], [2])
Why am I getting a KeyError if key in M.keys() is returning True? And
why is the behavior on sagenb different than on my local, 3.4
built-from-source on Ubuntu 10.8 distribution?
Any ideas are very welcome!
Cheers,
Jason
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[sage-support] Coercion problem
Hi all, Is the following missing coercion known? I couldn't find anything on trac, but there's a lot there related to coercion, so I may have missed it. sage: a = float(1.0) sage: QQ(a) TypeError: Unable to coerce 1.0 (type 'float') to Rational Note that the following works: sage: a = float(1.0) sage: QQ(RR(a)) 1 I'm happy to open a ticket if that's the right thing to do here. Thanks, Jason Bandlow --~--~-~--~~~---~--~~ 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] The preparser and nested loads
Hi all, I ran into the following unexpected behavior, which I assume is because the preparser does not work with nested loads. I have two files, foo.sage and bar.sage. Their contents are as follows: foo.sage def foo(): return (-1)**(-1) bar.sage load foo.sage The following sage session works as expected: sage: load foo.sage sage: type(foo()) type 'sage.rings.rational.Rational' The following session does not: sage: load bar.sage sage: type(foo()) type 'float' I'm guessing that in the second session the file foo.sage is not getting preparsed (and so foo() returns a Python object and not a Sage object). Is this correct? If so, is there a way to force it to be preparsed? I like to have lots of little files with different functions, and then a file which loads whichever of these happen to be working/relevant at the moment. That way I only have to load one file at the start of my session. Any advice is much appreciated! Thanks, Jason Bandlow --~--~-~--~~~---~--~~ 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: Coercion problem
Robert Bradshaw wrote: On Mar 21, 2009, at 9:06 AM, Jason Bandlow wrote: Hi all, Is the following missing coercion known? I couldn't find anything on trac, but there's a lot there related to coercion, so I may have missed it. sage: a = float(1.0) sage: QQ(a) TypeError: Unable to coerce 1.0 (type 'float') to Rational Note that the following works: sage: a = float(1.0) sage: QQ(RR(a)) 1 I'm happy to open a ticket if that's the right thing to do here. Yes, this conversion is missing. It should be easy to implement. - Robert This is now: http://sagetrac.org/sage_trac/ticket/5582 Thanks, Jason --~--~-~--~~~---~--~~ 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: How to store a result of one Sage program in a text file or other type of File?
Raouf wrote: Hi, I want to store a result of one Sage program in a text file or other type of File, and i want know how to use this result file in another sage program.? Thank u. Hi Raouf, Does typing: save? from withing sage answer your question? If not, can you be more specific about what 'save' does that does not work for you? Best, Jason Bandlow --~--~-~--~~~---~--~~ 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: Simple Combinatorics and Probability
Hi Matthew,
Matthew J wrote:
Sage is great software that I rave about in pretty much all of my
classes except for probability theory. I’d like to get some info on a
few topics to clear some things up so that I can use these for classes
and to post to an examples worksheet. Thanks in advance to anyone that
replies.
I am wondering how to do a few things.
Is there a better (built-in) way to do simple combinations/
permutations than writing a function like
def choose(n,k): return factorial(n)/(factorial(k)*factorial((n-k)))
Entering: binomial(5,2)
will return: 10
Is this what you want? (This is much more efficient than the 'choose'
function you have above.)
or equivalent for permutations?
I'm not sure exactly what you mean here. factorial(n) counts the number
of permutations of 'n' elements very efficiently. Perhaps you mean
sage: permutations([1,2,2])
[[1, 2, 2], [2, 1, 2], [2, 2, 1]]
Type permutations? for more information on this command. You may also
be interested in the command 'combinations'.
-
Is there a way to get the Standard Normal CDF other than writing the
function explicitly like below?
def normalCDF(z):
t = var('t')
return N(integrate((1/sqrt(2*pi))*e^((-t^2)/2), t, -infinity, z))
-
Also, are there any distributions built into sage? I don’t quite know
what working with a distribution symbolically would be like, but as an
example, perhaps being able to do something like
X ~ BIN(n, p) and then get the expected value, variance, or PDF of X?
Assume that n and p are given.
*Lots* of statistics is built into sage with the 'R' package. I don't
know it well, but you can try typing R? inside sage and see what you can
work out from there.
Cheers,
Jason
Thanks,
-Matthew J
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[sage-support] manipulating dictionaries (bug?)
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi Stan, I think I saw one question you asked that hasn't been answered yet: Stan Schymanski wrote: snip If I construct a list out of two other lists, I usually don't expect the original lists to change if I manipulate the resulting list. How can I break such links? snip The way I usually do this is: sage: L = [1, 2, 3] sage: LL = L[:] This makes LL a copy of L instead of reference to it. As such, I can manipulate the two completely independently. Best, Jason -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFJEM7b8gPPTTURhZkRApk4AJ9672d9EekPoCdG7Z0qh/LLsPYXSwCfd1Ga 652K4qgYDuKgabqmz6keAYk= =Y3HM -END PGP SIGNATURE- --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Bug in plot?
Hi all, A student of mine noticed the following and it looks like a bug to me (at least with the documentation). From the notebook with 3.1.2 (sage prompts added for readability): sage: plot? File: /home/jason/sage/local/lib/python2.5/site-packages/sage/plot/plot.py Type:type 'function' Definition: plot(funcs, *args, **kwds) Docstring: Use plot by writing plot(X, ...) where X is a SAGE object (or list of SAGE objects) that either is callable and returns numbers that can be coerced to floats, or has a plot method that returns a GraphicPrimitive object. Type plot.options for a dictionary of the default options for plots. You can change this to change the defaults for all future plots. Use plot.reset() to reset to the default options. SNIP sage: plot.options Traceback (most recent call last): File stdin, line 1, in module File /home/jason/.sage/sage_notebook/worksheets/admin/32/code/44.py, line 6, in module plot.options File /home/jason/sage/local/lib/python2.5/site-packages/zope.interface-3.3.0-py2.5-linux-i686.egg/, line 1, in module AttributeError: 'function' object has no attribute 'options' sage: plot.reset() Traceback (most recent call last): File stdin, line 1, in module File /home/jason/.sage/sage_notebook/worksheets/admin/32/code/46.py, line 6, in module plot.reset() File /home/jason/sage/local/lib/python2.5/site-packages/zope.interface-3.3.0-py2.5-linux-i686.egg/, line 1, in module AttributeError: 'function' object has no attribute 'reset' Cheers, Jason --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Maxima problems in sage 3.1.1
Thanks Michael, Check your home directory for any file with an accent or Umlaut and you likely found the culprit you need to rename. This fixed the problem. Good luck with ecls. Cheers, Jason mabshoff wrote: On Sep 15, 6:34 pm, Jason Bandlow [EMAIL PROTECTED] wrote: Hello, I've been happily '$ sage -updgrade'ing since sage 2.10 or so, and recently noticed that I couldn't use Maxima (details below). I'm not sure for how long I've had this problem. Knowing the disclaimer that applies to upgrading, I downloaded the linux 32-bit binaries for 3.1.1 from sagemath.org and still had the same problem. I'm running Ubuntu Hardy on an AMD laptop. If I try any command that calls Maxima, I have to wait for a timeout, and then get an error. Specific system information and a traceback are below. Thanks very much for any help, Jason Bandlow SNIP Hi Jason, *** - invalid byte #xFD in CHARSET:UTF-8 conversion, not a Unicode-16 this is #2841 and clisp riding on the short bus. Check your home directory for any file with an accent or Umlaut and you likely found the culprit you need to rename. This has been open on the clisp end forever and has never been fixed. That is why we are moving to ecls, hopefully in the 3.1.3 release cycle. Cheers, Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Doctest question
Hello all, Regarding doctesting, I'd like to work with the following setup: 1. Create a file work.sage (or work.py) somewhere in my home directory. 2. Start a notebook session, and attach work.sage. 3. Use the notebook for generating and staring at data, while using a text editor to modify my code. 4. Periodically run: $ sage -t work.sage to make sure that I haven't completely fouled things up. Step 4 seems not to work (on Sage 2.11 on Ubuntu). For example, I created the following file, foo.py, in my ~/.sage directory: def foo(x): r Shows how doctests don't work. EXAMPLES: sage: 2+2 5 sage: foo(3) 4 print(x) And then $ sage -t --verbose ~/.sage/foo.py -- All tests passed! Total time for all tests: 0.0 seconds $ sage -coverage ~/.sage/foo.py -- foo.py SCORE foo.py: 100% (1 of 1) -- Can someone explain to me what's going on here? Thanks, Jason --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Doctest question
William Stein wrote: On Tue, Apr 15, 2008 at 9:11 AM, Jason Bandlow [EMAIL PROTECTED] wrote: Hello all, Regarding doctesting, I'd like to work with the following setup: 1. Create a file work.sage (or work.py) somewhere in my home directory. 2. Start a notebook session, and attach work.sage. 3. Use the notebook for generating and staring at data, while using a text editor to modify my code. 4. Periodically run: $ sage -t work.sage to make sure that I haven't completely fouled things up. Step 4 seems not to work (on Sage 2.11 on Ubuntu). For example, I created the following file, foo.py, in my ~/.sage directory: As a workaround do not put foo.py in .sage; put it in *any* other directory that does not start with a dot. Then everything should work fine. -- William Thanks! That seems to work. However the following is an annoyance: If the file has extension .sage, sage -t works great, but sage -coverage does nothing. If the file has extension .py, sage -coverage works well, but sage -t fails to find the methods in the file (an example is below). This isn't a big deal for me, since I tend to work with .sage files and I can find the coverage by hand, but it still seems worth mentioning. Example: [EMAIL PROTECTED]:~$ more good.sage def foo(x): r Shows how doctests don't work. EXAMPLES: sage: foo(3) 3 print x [EMAIL PROTECTED]:~$ sage -t good.sage sage -t good.sage Example 0 (line 5) [2.6 s] -- All tests passed! Total time for all tests: 2.6 seconds [EMAIL PROTECTED]:~$ cp good.sage good.py [EMAIL PROTECTED]:~$ sage -t good.py sage -t good.py ** File good.py, line 6: sage: foo(3) Exception raised: Traceback (most recent call last): File /home/jason/sage/local/lib/python2.5/doctest.py, line 1212, in __run compileflags, 1) in test.globs File doctest __main__.example_0[0], line 1, in module foo(Integer(3))###line 6: sage: foo(3) NameError: name 'foo' is not defined ** 1 items had failures: 1 of 1 in __main__.example_0 ***Test Failed*** 1 failures. For whitespace errors, see the file .doctest_good.py [1.7 s] exit code: 1024 -- The following tests failed: sage -t good.py Total time for all tests: 1.7 seconds Cheers, Jason --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
