Re: Issue 2096 in sympy: 1/0 should be zoo, not oo

Comment #27 on issue 2096 by smi...@gmail.com: 1/0 should be zoo, not oo http://code.google.com/p/sympy/issues/detail?id=2096 Aaron meant to say: I think to properly fix this issue, we will need to fix issue 2811. -- You received this message because you are subscribed to the Google Groups

Re: Issue 2820 in sympy: expand() doesn't work in the denominator

Updates: Status: NeedsDecision Labels: -NeedsBetterPatch -smichr Comment #4 on issue 2820 by smi...@gmail.com: expand() doesn't work in the denominator http://code.google.com/p/sympy/issues/detail?id=2820 From pull request 700 Aaron says: This is a nice solution for issue 84

Issue 2830 in sympy: checkodesol needs to use force

Status: Accepted Owner: Labels: Type-Defect Priority-Medium CodeInCategory-Code CodeInDifficulty-Medium New issue 2830 by smi...@gmail.com: checkodesol needs to use force http://code.google.com/p/sympy/issues/detail?id=2830 @@ -542,7 +542,11 @@ def test_1st_homogeneous_coeff_ode_check3(

Re: Issue 2828 in sympy: primitive() problem

Comment #3 on issue 2828 by smi...@gmail.com: primitive() problem http://code.google.com/p/sympy/issues/detail?id=2828 Sorry -- in my 'and' branch (pull #669) I get what I showed above which is different than what the test-bot gets. (In master I get what you get.) Why would this be system de

Re: Issue 2813 in sympy: roots(x**2 - x - 0.1) doesn't give both solutions

Updates: Labels: NeedsReview smichr Comment #8 on issue 2813 by smi...@gmail.com: roots(x**2 - x - 0.1) doesn't give both solutions http://code.google.com/p/sympy/issues/detail?id=2813 https://github.com/sympy/sympy/pull/701 -- You received this message because you are subscribed to

Re: Issue 2828 in sympy: primitive() problem

Comment #2 on issue 2828 by smi...@gmail.com: primitive() problem http://code.google.com/p/sympy/issues/detail?id=2828 This is system dependent (and I don't yet know why). Here (win-32), I get: >>> (4.0*x + y/2).primitive()==(S.Half , 8.0*x + y) True >>> -- You received this messa

Re: Issue 2824 in sympy: Quantum functions should all sympify their arguments

Comment #2 on issue 2824 by smi...@gmail.com: Quantum functions should all sympify their arguments http://code.google.com/p/sympy/issues/detail?id=2824 https://github.com/sympy/sympy/pull/703 -- You received this message because you are subscribed to the Google Groups "sympy-issues" group.

Issue 2829 in sympy: secondquant argument ordering

Status: Accepted Owner: Labels: Type-Defect Priority-Medium New issue 2829 by smi...@gmail.com: secondquant argument ordering http://code.google.com/p/sympy/issues/detail?id=2829 In secondquant there are some places where a test like `if i < j` is employed but it's not clear if lexical or

Re: Issue 2677 in sympy: subs(Eq) does not work

Comment #6 on issue 2677 by ronan.l...@gmail.com: subs(Eq) does not work http://code.google.com/p/sympy/issues/detail?id=2677 Equality is commutative, but the arguments of subs() aren't. You want to make expr.subs(Eq(x**2, y)) do something completely different from expr.subs(Eq(y, x**2)), co

Re: Issue 2738 in sympy: Make a distinction between operations and their result

Comment #7 on issue 2738 by ronan.l...@gmail.com: Make a distinction between operations and their result http://code.google.com/p/sympy/issues/detail?id=2738 The answer to both questions is clearly no. x + y and y + x print differently, so they should be different. -- You received this me

Re: Issue 2827 in sympy: 2to3 conversion tool gives some errors on the GA module

Updates: Status: Duplicate Mergedinto: 2679 Comment #2 on issue 2827 by asmeu...@gmail.com: 2to3 conversion tool gives some errors on the GA module http://code.google.com/p/sympy/issues/detail?id=2827 (No comment was entered for this change.) -- You received this message beca

Re: Issue 2679 in sympy: Refactor GA* documentation to use doctests (or move it to examples/)

Comment #9 on issue 2679 by asmeu...@gmail.com: Refactor GA* documentation to use doctests (or move it to examples/) http://code.google.com/p/sympy/issues/detail?id=2679 Issue 2827 has been merged into this issue. -- You received this message because you are subscribed to the Google Groups

Re: Issue 2828 in sympy: primitive() problem

Comment #1 on issue 2828 by ondrej.c...@gmail.com: primitive() problem http://code.google.com/p/sympy/issues/detail?id=2828 And also pull request: https://github.com/sympy/sympy/pull/669 -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post

Re: Issue 2826 in sympy: Strange series behavior

Updates: Status: Accepted Labels: Series Comment #1 on issue 2826 by asmeu...@gmail.com: Strange series behavior http://code.google.com/p/sympy/issues/detail?id=2826 (No comment was entered for this change.) -- You received this message because you are subscribed to the Google G

Re: Issue 2677 in sympy: subs(Eq) does not work

Updates: Status: NeedsDecision Comment #5 on issue 2677 by asmeu...@gmail.com: subs(Eq) does not work http://code.google.com/p/sympy/issues/detail?id=2677 When expr.subs(x**2, y) replaces x with sqrt(y), this is essentially assuming Eq(x**2, y), so I don't see any inconsistency here.

Re: Issue 2820 in sympy: expand() doesn't work in the denominator

Updates: Labels: -NeedsReview NeedsBetterPatch Comment #3 on issue 2820 by asmeu...@gmail.com: expand() doesn't work in the denominator http://code.google.com/p/sympy/issues/detail?id=2820 See the pull request. I think it fixes issue 849 (from what I've seen), but not really this o

Issue 2828 in sympy: primitive() problem

Status: Accepted Owner: Labels: Type-Defect Priority-Medium New issue 2828 by ondrej.c...@gmail.com: primitive() problem http://code.google.com/p/sympy/issues/detail?id=2828 Before: python -c 'from sympy import var; var("x y"); print (4.0*x + y/2).primitive()' (1/2, 2*4.0*x + y) now:

Re: Issue 2813 in sympy: roots(x**2 - x - 0.1) doesn't give both solutions

Comment #7 on issue 2813 by asmeu...@gmail.com: roots(x**2 - x - 0.1) doesn't give both solutions http://code.google.com/p/sympy/issues/detail?id=2813 Exactly. See comment 1. -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this

Re: Issue 2738 in sympy: Make a distinction between operations and their result

Comment #6 on issue 2738 by asmeu...@gmail.com: Make a distinction between operations and their result http://code.google.com/p/sympy/issues/detail?id=2738 Another thing to consider is the ordering of args (for commutative operations). Should x + y and y + x be automatically canonicalized

Re: Issue 2805 in sympy: Should unevaluated objects still sort their args?

Comment #2 on issue 2805 by asmeu...@gmail.com: Should unevaluated objects still sort their args? http://code.google.com/p/sympy/issues/detail?id=2805 I think for what we have now, we should sort them (to avoid bugs), but if we reimplement it using something like from issue 2738, we can imp

Re: Issue 2811 in sympy: Make (1/(1 - t)).subs(t, 1) return -oo instead of oo

Updates: Blockedon: 2096 Comment #3 on issue 2811 by asmeu...@gmail.com: Make (1/(1 - t)).subs(t, 1) return -oo instead of oo http://code.google.com/p/sympy/issues/detail?id=2811 (No comment was entered for this change.) -- You received this message because you are subscribed to the

Re: Issue 2096 in sympy: 1/0 should be zoo, not oo

Issue 2096: 1/0 should be zoo, not oo http://code.google.com/p/sympy/issues/detail?id=2096 This issue is now blocking issue 2811. See http://code.google.com/p/sympy/issues/detail?id=2811 -- You received this message because you are listed in the owner or CC fields of this issue, or because you s

Re: Issue 2811 in sympy: Make (1/(1 - t)).subs(t, 1) return -oo instead of oo

Updates: Labels: Series WrongResult Comment #2 on issue 2811 by asmeu...@gmail.com: Make (1/(1 - t)).subs(t, 1) return -oo instead of oo http://code.google.com/p/sympy/issues/detail?id=2811 Actually, according to issue 2096, it should return zoo. But to make it consistant with the cu

Re: Issue 2827 in sympy: 2to3 conversion tool gives some errors on the GA module

Comment #1 on issue 2827 by ondrej.c...@gmail.com: 2to3 conversion tool gives some errors on the GA module http://code.google.com/p/sympy/issues/detail?id=2827 This is duplicate of #2679. -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To p

Issue 2827 in sympy: 2to3 conversion tool gives some errors on the GA module

Status: Accepted Owner: Labels: Type-Defect Priority-Medium New issue 2827 by ondrej.c...@gmail.com: 2to3 conversion tool gives some errors on the GA module http://code.google.com/p/sympy/issues/detail?id=2827 RefactoringTool: Can't parse py3k-sympy/doc/src/modules/galgebra/GA/BasicGAt

Re: Issue 1191 in sympy: Sum is broken for direct sums over 10 terms

Comment #5 on issue 1191 by ondrej.c...@gmail.com: Sum is broken for direct sums over 10 terms http://code.google.com/p/sympy/issues/detail?id=1191 This works great, thanks Chris for fixing it! from sympy.physics.quantum import * ok=Sum((n+Rational(1,2))*Ket([n])*Bra([n]), (n,0,100)).doit(

Re: Issue 2077 in sympy: classify_ode() doesn't catch a 1st_linear/separable ode

Comment #8 on issue 2077 by smi...@gmail.com: classify_ode() doesn't catch a 1st_linear/separable ode http://code.google.com/p/sympy/issues/detail?id=2077 Hmm...in the routine I had used _ as a throw-away variable and so while debugging, it no longer referred to the last output, it retained

Issue 2826 in sympy: Strange series behavior

Status: New Owner: Labels: Type-Defect Priority-Medium New issue 2826 by serge.al...@gmail.com: Strange series behavior http://code.google.com/p/sympy/issues/detail?id=2826 #2 can be obtained from #1 by substitution (x)->(x+y), both results must have the same form var('x y z') (x, y, z)

Re: Issue 1172 in sympy: example: curve sketching

Comment #17 on issue 1172 by smi...@gmail.com: example: curve sketching http://code.google.com/p/sympy/issues/detail?id=1172 Pull 656 has been merged. The remaining problems are desribed in comment 16. -- You received this message because you are subscribed to the Google Groups "sympy-issues"

Re: Issue 2677 in sympy: subs(Eq) does not work

Comment #4 on issue 2677 by smi...@gmail.com: subs(Eq) does not work http://code.google.com/p/sympy/issues/detail?id=2677 Can we mark this WontFix? -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-issu

Re: Issue 2813 in sympy: roots(x**2 - x - 0.1) doesn't give both solutions

Updates: Summary: roots(x**2 - x - 0.1) doesn't give both solutions Labels: -NeedsReview -smichr Comment #6 on issue 2813 by smi...@gmail.com: roots(x**2 - x - 0.1) doesn't give both solutions http://code.google.com/p/sympy/issues/detail?id=2813 This needs more investigation s

Re: Issue 1364 in sympy: simple equations involving log()

Updates: Status: Fixed Comment #10 on issue 1364 by smi...@gmail.com: simple equations involving log() http://code.google.com/p/sympy/issues/detail?id=1364 Pull 656 has been merged. -- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To

Re: Issue 2236 in sympy: solve fails for polysys with multiple solutions

Updates: Status: Accepted Comment #10 on issue 2236 by smi...@gmail.com: solve fails for polysys with multiple solutions http://code.google.com/p/sympy/issues/detail?id=2236 (No comment was entered for this change.) -- You received this message because you are subscribed to the Googl

Re: Issue 2236 in sympy: solve fails for polysys with multiple solutions

Updates: Status: Fixed Labels: -Solvers -NeedsReview -smichr Polynomial Comment #9 on issue 2236 by smi...@gmail.com: solve fails for polysys with multiple solutions http://code.google.com/p/sympy/issues/detail?id=2236 Pull 656 has been merged. Polys is now avoided in the solv

Re: Issue 2802 in sympy: solve error with expression with derivative

Updates: Labels: -WrongResult -NeedsReview Matching Comment #15 on issue 2802 by smi...@gmail.com: solve error with expression with derivative http://code.google.com/p/sympy/issues/detail?id=2802 Pull 656 has been merged, but this issue is being left open to remind us to address com

Re: Issue 1191 in sympy: Sum is broken for direct sums over 10 terms

Updates: Status: Fixed Comment #4 on issue 1191 by smi...@gmail.com: Sum is broken for direct sums over 10 terms http://code.google.com/p/sympy/issues/detail?id=1191 Pull 656 has been merged. No specific test for this issue was added but the solver watches for polys that fail to be

Re: Issue 2750 in sympy: solve could do a better job with over determined systems

Updates: Status: Fixed Comment #7 on issue 2750 by smi...@gmail.com: solve could do a better job with over determined systems http://code.google.com/p/sympy/issues/detail?id=2750 Pull 656 has been merged. -- You received this message because you are subscribed to the Google Groups "