Issue 1391 in sympy: integrate(cos(x)*f(x),(x,0,y)) gives wrong result

Comment #1 on issue 1391 by goriccardo: integrate(cos(x)*f(x),(x,0,y)) gives wrong result http://code.google.com/p/sympy/issues/detail?id=1391 After commit 2573c851af78b0e52f9951f791e664b540de4bfe it gives: In [1]: integrate(sin(x)*f(x),(x,y,z)) Out[1]: d d ──(f(z

Issue 1420 in sympy: subs() seems to fail against D(x(t), t)

Comment #7 on issue 1420 by ondrej.certik: subs() seems to fail against D(x(t), t) http://code.google.com/p/sympy/issues/detail?id=1420 Rather than just watching, join in the development. :) -- You received this message because you are listed in the owner or CC fields of this issue, or becaus

Issue 1420 in sympy: subs() seems to fail against D(x(t), t)

Comment #6 on issue 1420 by 2006.Uchida: subs() seems to fail against D(x(t), t) http://code.google.com/p/sympy/issues/detail?id=1420 Thanks a lot! What a fast response you did! It's very active. I'm definitely going to keep my eyes on the development of Sympy. -- You received this message