Re: Issue 2049 in sympy: Derivative(f(x), x).subs(f(x), y) gives 0 instead of Derivative(y, x)

Comment #11 on issue 2049 by smichr: Derivative(f(x), x).subs(f(x), y) gives 0 instead of Derivative(y, x) http://code.google.com/p/sympy/issues/detail?id=2049 https://github.com/sympy/sympy/pull/54 -- You received this message because you are subscribed to the Google Groups sympy-issues

Re: Issue 1963 in sympy: changes to core/power

Comment #6 on issue 1963 by smichr: changes to core/power http://code.google.com/p/sympy/issues/detail?id=1963 https://github.com/sympy/sympy/pull/55 -- You received this message because you are subscribed to the Google Groups sympy-issues group. To post to this group, send email to

Re: Issue 1731 in sympy: fraction can be more flexible

Comment #14 on issue 1731 by smichr: fraction can be more flexible http://code.google.com/p/sympy/issues/detail?id=1731 Although I originally changed what was returned from fractions (and someone mentioned that they were wary of t2 because of this) that change has been reverted. This commit

Issue 2128 in sympy: cannot integrate piecewise function numerically

Status: New Owner: Labels: Type-Defect Priority-Medium New issue 2128 by jagermeistermeister: cannot integrate piecewise function numerically http://code.google.com/p/sympy/issues/detail?id=2128 Hi, I'm new to sympy, so please forgive me if this is not a bug :-) I am trying to

Re: Issue 1837 in sympy: 0**(x-2) becomes (oo)**(2-x)

Comment #3 on issue 1837 by smichr: 0**(x-2) becomes (oo)**(2-x) http://code.google.com/p/sympy/issues/detail?id=1837 This is now just a test suite adding tests for 0**a that were not present before. https://github.com/sympy/sympy/pull/56 -- You received this message because you are

Re: Issue 2128 in sympy: cannot integrate piecewise function numerically

Updates: Status: Accepted Labels: Integration Polynomial Comment #1 on issue 2128 by asmeurer: cannot integrate piecewise function numerically http://code.google.com/p/sympy/issues/detail?id=2128 In master, Integral(f, (x, -oo, oo)).evalf() hangs, Integral(f, (x, -oo,

Re: Issue 2128 in sympy: cannot integrate piecewise function numerically

Comment #2 on issue 2128 by jagermeistermeister: cannot integrate piecewise function numerically http://code.google.com/p/sympy/issues/detail?id=2128 Thank you for looking into it :) Can anything be said about when the polys11 branch gets merged in? Perhaps I could try/test the polys11

Re: Issue 2128 in sympy: cannot integrate piecewise function numerically

Comment #3 on issue 2128 by jagermeistermeister: cannot integrate piecewise function numerically http://code.google.com/p/sympy/issues/detail?id=2128 I think I found the branch at https://github.com/mattpap/sympy-polys/tree/polys11 I will test it :-) -- You received this message because

Re: Issue 2114 in sympy: Mul.make_args(S.One) returns ()

Comment #8 on issue 2114 by ronan.l...@gmail.com: Mul.make_args(S.One) returns () http://code.google.com/p/sympy/issues/detail?id=2114 I'm not convinced by Chris's examples (it's never a good idea to assume that the first argument of a Mul is going to be anything specific) and I still

Re: Issue 2114 in sympy: Mul.make_args(S.One) returns ()

Updates: Labels: NeedsReview Comment #9 on issue 2114 by smichr: Mul.make_args(S.One) returns () http://code.google.com/p/sympy/issues/detail?id=2114 In the example, I'm not assuming anything about the first argument, I am just showing a case where one might want to show what it is or