Comment #6 on issue 1463 by Toon.Verstraelen: Initial codegen implementation
http://code.google.com/p/sympy/issues/detail?id=1463
Thanks for the suggestions, I'll make a new set of patches. Maybe it is
even better
to let codegen return the contents of the files as strings by default. With
an
Comment #7 on issue 1463 by Toon.Verstraelen: Initial codegen implementation
http://code.google.com/p/sympy/issues/detail?id=1463
With respect to 0001-Allow-SYMPY_TEST_CLEAN_TEMP-never.patch: Is there a
way to print
the locations of the temporary directories on screen? I have the impression
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 1467 by smichr: sorting values with imaginary numbers in radical
http://code.google.com/p/sympy/issues/detail?id=1467
Sorting can be done with real and imaginary numbers, but if the imaginary
portion is in a radical, the sort
Comment #3 on issue 1358 by wflynny: (e*f*e*f).subs(e*f,f*e+h) fails if e*f
is not commutative
http://code.google.com/p/sympy/issues/detail?id=1358
This patch needs to be more general. I get a lot of errors from the first
portion
when I compile some of my own code. I think the problem comes
Comment #8 on issue 1463 by ondrej.certik: Initial codegen implementation
http://code.google.com/p/sympy/issues/detail?id=1463
Yeah, ignore the build system for now, I agree.
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Comment #6 on issue 986 by nicolas.pourcelot: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
I try to implement it a bit more properly than I suggested before, but I
can't figure
a clear coding guideline concerning comparisons in sympy current code.
For example, what sh
Comment #5 on issue 986 by nicolas.pourcelot: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
Well, I'm not sure I can, but I think I can try at least. ;)
I've never used Git (and only one time subversion), so this is the hard
part of the job.
But the Quick Start tutori
Comment #7 on issue 1454 by ondrej.certik: variable i in global namespace
http://code.google.com/p/sympy/issues/detail?id=1454
What is the "k" attribute doing there in the first place? Why does it have
to be
deleted by 'del k'? I would like some understanding, before we just remove
it.
Oth
Comment #10 on issue 1455 by ondrej.certik: Split expand so that it only
expands a*(x+y) => a*x+a*y
http://code.google.com/p/sympy/issues/detail?id=1455
I don't like this _expand_basic at all, I think we all seem to agree on
that.
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Updates:
Labels: Milestone-Release0.6.5
Comment #1 on issue 1467 by ondrej.certik: sorting values with imaginary
numbers in radical
http://code.google.com/p/sympy/issues/detail?id=1467
Not sure at the moment, but this seems like a bug to me.
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Comment #4 on issue 1358 by ondrej.certik: (e*f*e*f).subs(e*f,f*e+h) fails
if e*f is not commutative
http://code.google.com/p/sympy/issues/detail?id=1358
Thanks for help. Someone has to fix it now. :)
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Comment #7 on issue 986 by ondrej.certik: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
Complex numbers can't be compared, so I < 1 doesn't make any sense anyways.
I suggest you simply fix things that break your own code or that you need
to be
fixed. If git is hard, ju
Comment #8 on issue 1454 by asmeurer: variable i in global namespace
http://code.google.com/p/sympy/issues/detail?id=1454
It looks like that for loop goes through all of the is_ attributes in Basic
and does something. But after it is done, k, the index
variable, becomes an attribute with its
Comment #8 on issue 986 by nicolas.pourcelot: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
Ok, that's easier then. Thanks. :)
Attachments:
0001-Infinity-comparison-fix-issue-986.patch 1.4 KB
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Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 1468 by smichr: problems with quartic root solver
http://code.google.com/p/sympy/issues/detail?id=1468
In trying to understand issue 1439 better, I investigated the behavior of
the solver wrt quartic equations and found the fo
Comment #9 on issue 986 by nicolas.pourcelot: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
Sorry, but I have a last a question.
Should I write a test too ?
In that case, is it better to create a new test_comparisons.py file, or to
include my
test in one of the existin
Comment #10 on issue 986 by ondrej.certik: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
Yes, please write thorough tests for all methods you implemented and put
them into:
test_relational.py
thanks!
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Comment #11 on issue 986 by nicolas.pourcelot: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
The following patch contains the tests only.
Attachments:
0001-Test-Infinity-comparison-fix-issue-986.patch 1.6 KB
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Comment #11 on issue 1455 by Vinzent.Steinberg: Split expand so that it
only expands a*(x+y) => a*x+a*y
http://code.google.com/p/sympy/issues/detail?id=1455
_expand_basic has advantages:
If expand() with no keyword arguments just calls _expand_basic, the user
can define
his own expansion ru
Updates:
Status: Started
Labels: NeedsReview
Comment #12 on issue 986 by Vinzent.Steinberg: -oo < oo is False
http://code.google.com/p/sympy/issues/detail?id=986
(No comment was entered for this change.)
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Comment #12 on issue 1455 by asmeurer: Split expand so that it only expands
a*(x+y) => a*x+a*y
http://code.google.com/p/sympy/issues/detail?id=1455
I could just leave in basic as a default argument but not have any SymPy
object implement it. Then if someone
wants to have their custom expand
Comment #5 on issue 1358 by wflynny: (e*f*e*f).subs(e*f,f*e+h) fails if e*f
is not commutative
http://code.google.com/p/sympy/issues/detail?id=1358
We were looking deeper into this problem today and we traced the problem to
the
following snippet of code in the '_eval_subs' definition in mul.
Comment #13 on issue 1455 by ondrej.certik: Split expand so that it only
expands a*(x+y) => a*x+a*y
http://code.google.com/p/sympy/issues/detail?id=1455
Exactly.
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Comment #6 on issue 1358 by ondrej.certik: (e*f*e*f).subs(e*f,f*e+h) fails
if e*f is not commutative
http://code.google.com/p/sympy/issues/detail?id=1358
Yes, definitely. Please do so. Just try to get some code that works with
lists, I'll
help you integrate it inside sympy. Thanks for lookin
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 1469 by smichr: "can't decompose" error
http://code.google.com/p/sympy/issues/detail?id=1469
With x, a, b and c defined as symbols, factoring the following works:
###
>>> factor(a+b*x+c*x,x)
a + x*(b + c)
###
But if that c i
Status: New
Owner:
Labels: Type-Defect Priority-Medium
New issue 1470 by smichr: limit(sqrt(-x),x,oo) hangs
http://code.google.com/p/sympy/issues/detail?id=1470
Three of the sqrt(+-x),x,+-oo permutations succeed but one fails:
###
>>> limit(sqrt(x),x,oo)
oo
>>> limit(sqrt(x),x,-oo)
(oo)*I
Comment #9 on issue 1454 by asmeurer: variable i in global namespace
http://code.google.com/p/sympy/issues/detail?id=1454
I didn't realize before, but my test makes test_implicit_import fail
(because it does from sympy import * to look
for global i). I think probably we should remove that and
Comment #10 on issue 1458 by Ronan.Lamy: numpy + geometry doesn't work on
windows
http://code.google.com/p/sympy/issues/detail?id=1458
Hello,
I've investigated the issue to get an understanding of sympy's inner
workings. I've
managed to reduce it down to the addition of two Rationals where o
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