Re: Issue 3730 in sympy: cancel should work with primitive of expression

Comment #5 on issue 3730 by asmeu...@gmail.com: cancel should work with primitive of expression http://code.google.com/p/sympy/issues/detail?id=3730 I'm not sure if it can be predicted. The cancelation is based on the ad hoc way that Poly creates generators out of the subexpressions, and ho

Re: Issue 3730 in sympy: cancel should work with primitive of expression

Comment #4 on issue 3730 by smi...@gmail.com: cancel should work with primitive of expression http://code.google.com/p/sympy/issues/detail?id=3730 I guess the issue has something do do with expansion because z.as_content_primitive()[1].expand().cancel() works; the expand can come before t

Re: Issue 3730 in sympy: cancel should work with primitive of expression

Comment #3 on issue 3730 by smi...@gmail.com: cancel should work with primitive of expression http://code.google.com/p/sympy/issues/detail?id=3730 These are the minimal orderings of ops that reduce z to 0: z.as_content_primitive().cancel().cancel() or z.cancel().as_content_primitive().canc

Re: Issue 3730 in sympy: cancel should work with primitive of expression

Updates: Cc: smi...@gmail.com Comment #2 on issue 3730 by smi...@gmail.com: cancel should work with primitive of expression http://code.google.com/p/sympy/issues/detail?id=3730 The expression reduces to zero after 2 applications of cancel, but they alone are not sufficient to reduce

Re: Issue 2759 in sympy: Implement the forumlas from the matrix cookbook

Comment #10 on issue 2759 by mrock...@gmail.com: Implement the forumlas from the matrix cookbook http://code.google.com/p/sympy/issues/detail?id=2759 We should eventually be able to cover that use case. Work on this topic is coming along well. Theano is a nice back end for machine learnin

Re: Issue 3735 in sympy: solve misses some solutions

Comment #1 on issue 3735 by smi...@gmail.com: solve misses some solutions http://code.google.com/p/sympy/issues/detail?id=3735 I wouldn't look to solve to solve this resulting bi-cubic in the too near future. I would check for a way to deflate the system (remove the found root) before tryi

Re: Issue 1947 in sympy: @property methods doctests do not give correct line numbers

Comment #13 on issue 1947 by t.hi...@gmail.com: @property methods doctests do not give correct line numbers http://code.google.com/p/sympy/issues/detail?id=1947 see https://github.com/sympy/sympy/pull/1969 -- You received this message because this project is configured to send all issue no

Re: Issue 2759 in sympy: Implement the forumlas from the matrix cookbook

Comment #9 on issue 2759 by asmeu...@gmail.com: Implement the forumlas from the matrix cookbook http://code.google.com/p/sympy/issues/detail?id=2759 That's cool. The original motivation of this issue was that I was talking to a guy at the GSoC mentor summit in 2011 (I forgot his name). He u

Re: Issue 3734 in sympy: SymPy thinks that gmpy 2.0.0 is too old

Comment #1 on issue 3734 by asmeu...@gmail.com: SymPy thinks that gmpy 2.0.0 is too old http://code.google.com/p/sympy/issues/detail?id=3734 It's obviously because In [33]: "2.0.0" >= "2.0.0b4" Out[33]: False The solution is to bump the minimum version to 2.0.0. -- You received this messag

Issue 3735 in sympy: solve misses some solutions

Status: Valid Owner: Labels: Type-Defect Priority-Medium Solvers Polynomial New issue 3735 by asmeu...@gmail.com: solve misses some solutions http://code.google.com/p/sympy/issues/detail?id=3735 From http://stackoverflow.com/q/15830406/161801 from sympy import * # set up symbols a, b = sy

Issue 3734 in sympy: SymPy thinks that gmpy 2.0.0 is too old

Status: Valid Owner: Labels: Type-Defect Priority-Medium Milestone-Release0.7.3 New issue 3734 by asmeu...@gmail.com: SymPy thinks that gmpy 2.0.0 is too old http://code.google.com/p/sympy/issues/detail?id=3734 /Users/aaronmeurer/Documents/Python/sympy/sympy-scratch/sympy/external/import

Re: Issue 3592 in sympy: Check for gmpy 2

Updates: Status: Fixed Comment #14 on issue 3592 by asmeu...@gmail.com: Check for gmpy 2 http://code.google.com/p/sympy/issues/detail?id=3592 https://github.com/sympy/sympy/pull/1766 -- You received this message because this project is configured to send all issue notifications to thi

Issue 3733 in sympy: Symbolic matrix decompositions

Status: Valid Owner: Labels: Type-Enhancement Priority-Medium Matrices New issue 3733 by mrock...@gmail.com: Symbolic matrix decompositions http://code.google.com/p/sympy/issues/detail?id=3733 We should have representations for LU, Eig, SVD, QR decompositions in sympy.matrices.expressions

Re: Issue 2759 in sympy: Implement the forumlas from the matrix cookbook

Comment #8 on issue 2759 by mrock...@gmail.com: Implement the forumlas from the matrix cookbook http://code.google.com/p/sympy/issues/detail?id=2759 Here is an example implementing determinant relations from the matrix cookbook. https://github.com/sympy/sympy/pull/1974 With Theano printin

Re: Issue 3691 in sympy: Expand the behavior of matrix expressions determinant

Comment #13 on issue 3691 by mrock...@gmail.com: Expand the behavior of matrix expressions determinant http://code.google.com/p/sympy/issues/detail?id=3691 Much of this is implemented here https://github.com/sympy/sympy/pull/1974 -- You received this message because this project is configure

Re: Issue 694 in sympy: Add tests from "Review of CAS mathematical capabilities", by Michael Wester

Comment #41 on issue 694 by iurii.de...@gmail.com: Add tests from "Review of CAS mathematical capabilities", by Michael Wester http://code.google.com/p/sympy/issues/detail?id=694 Sorry, please review my patch again -- You received this message because this project is configured to send all