Thanks. I noticed that expand wasn't expanding denominators correctly, but I haven't had the time to look into it.
It looks like expand_mul needs to be fixed too: >>> print expand(1/(x*(x + y)), deep=True) 1/(x*(x + y)) Aaron Meurer On Aug 9, 2009, at 1:25 AM, Luke wrote: > Attached is a patch that allows expand to handle negative integer > powers. This effectively allows expressions like: > expr = (x+y)**(-2) > to be expanded by calling > expr.expand() > > ~Luke > > > > <0001-Implemented-code-to-expand-negative-integer-powers.patch> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy-patches" group. To post to this group, send email to sympy-patches@googlegroups.com To unsubscribe from this group, send email to sympy-patches+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sympy-patches?hl=en -~----------~----~----~----~------~----~------~--~---
