Issue 2858 in sympy: Solve doesn't get all the solutions of a polynomial system

2011-11-20 Thread sympy
Status: Accepted Owner: Labels: Type-Defect Priority-Medium Solvers Polynomial New issue 2858 by asmeu...@gmail.com: Solve doesn't get all the solutions of a polynomial system http://code.google.com/p/sympy/issues/detail?id=2858 In [166]: a = Matrix([x*(1 - x - y), y/4*(1 + x - 2*y)]) I

Re: Issue 2052 in sympy: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more"))

2011-11-20 Thread sympy
Comment #10 on issue 2052 by smi...@gmail.com: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more")) http://code.google.com/p/sympy/issues/detail?id=2052 With unevaluated objects like Sum and Product, is S.Zero doesn't work since `Sum(0, (x, 1, 2))` would be fa

Re: Issue 2052 in sympy: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more"))

2011-11-20 Thread sympy
Comment #9 on issue 2052 by smi...@gmail.com: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more")) http://code.google.com/p/sympy/issues/detail?id=2052 Yes, this is what I figured. I'm initially not in favor of removing is_Number since it means importing this

Re: Issue 2052 in sympy: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more"))

2011-11-20 Thread sympy
Comment #8 on issue 2052 by ronan.l...@gmail.com: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more")) http://code.google.com/p/sympy/issues/detail?id=2052 -1: there's no need to complicate the code by giving an additional attribute to every sympy object whe

93 issues changed in sympy

2011-11-20 Thread sympy
Updates: Labels: -codeinimportedintospreadsheet CodeInImportedIntoMelange Comment by asmeu...@gmail.com: (No comment was entered for this change.) Affected issues: issue 16: objects with indices (tensors) http://code.google.com/p/sympy/issues/detail?id=16 issue 93: Square root d

Re: Issue 2848 in sympy: Failing test in sympy/solvers/test/test_solvers.py

2011-11-20 Thread sympy
Comment #23 on issue 2848 by pr...@goodok.ru: Failing test in sympy/solvers/test/test_solvers.py http://code.google.com/p/sympy/issues/detail?id=2848 See also latest issue 2857 about is_irrational calculation. -- You received this message because you are subscribed to the Google Groups "sy

Re: Issue 2784 in sympy: 1/function() should be printed differently by latex printer

2011-11-20 Thread sympy
Updates: Labels: -CodeInDifficulty-Easy -EasyToFix CodeInDifficulty-Medium Comment #3 on issue 2784 by pr...@goodok.ru: 1/function() should be printed differently by latex printer http://code.google.com/p/sympy/issues/detail?id=2784 It is not ease to fix, because it is related with "m

Re: Issue 2639 in sympy: Product() is seriously broken

2011-11-20 Thread sympy
Updates: Labels: smichr NeedsReview Comment #10 on issue 2639 by smi...@gmail.com: Product() is seriously broken http://code.google.com/p/sympy/issues/detail?id=2639 https://github.com/sympy/sympy/pull/723 -- You received this message because you are subscribed to the Google Groups "sy

Re: Issue 2052 in sympy: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more"))

2011-11-20 Thread sympy
Comment #7 on issue 2052 by smi...@gmail.com: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more")) http://code.google.com/p/sympy/issues/detail?id=2052 Issue 2852 has been merged into this issue. -- You received this message because you are subscribed to the

Re: Issue 2852 in sympy: is_constant(wrt) is needed

2011-11-20 Thread sympy
Updates: Status: Duplicate Mergedinto: 2052 Comment #6 on issue 2852 by smi...@gmail.com: is_constant(wrt) is needed http://code.google.com/p/sympy/issues/detail?id=2852 (No comment was entered for this change.) -- You received this message because you are subscribed to the Goog

Re: Issue 2052 in sympy: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more"))

2011-11-20 Thread sympy
Updates: Summary: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more")) Labels: CodeInCategory-Code CodeInDifficulty-Easy Comment #6 on issue 2052 by smi...@gmail.com: is_Zero != is_zero (was "is_number needs a new name" (was "is_number could do more"

Re: Issue 2848 in sympy: Failing test in sympy/solvers/test/test_solvers.py

2011-11-20 Thread sympy
Comment #22 on issue 2848 by pr...@goodok.ru: Failing test in sympy/solvers/test/test_solvers.py http://code.google.com/p/sympy/issues/detail?id=2848 Note that in my branch the simplest test: clear_cache() (I*pi).is_irrational False I think the result must be True (and it is True now in t

Re: Issue 2848 in sympy: Failing test in sympy/solvers/test/test_solvers.py

2011-11-20 Thread sympy
Comment #21 on issue 2848 by smi...@gmail.com: Failing test in sympy/solvers/test/test_solvers.py http://code.google.com/p/sympy/issues/detail?id=2848 OK, I've pushed the commit. Since the problem is "out of the bag" so to speak, it's just going to save us having to look at failed test runs t

Re: Issue 2848 in sympy: Failing test in sympy/solvers/test/test_solvers.py

2011-11-20 Thread sympy
Comment #20 on issue 2848 by pr...@goodok.ru: Failing test in sympy/solvers/test/test_solvers.py http://code.google.com/p/sympy/issues/detail?id=2848 Yes, this passes in the above patch. But patch only cut off problem and therefore hide possible bug in the complicated algorithm of auto cal

Re: Issue 2848 in sympy: Failing test in sympy/solvers/test/test_solvers.py

2011-11-20 Thread sympy
Comment #19 on issue 2848 by smi...@gmail.com: Failing test in sympy/solvers/test/test_solvers.py http://code.google.com/p/sympy/issues/detail?id=2848 I haven't been following the discussion. Are you saying that this passes in your branch? If so I would like to get this committed. -- You rec