Comment #31 on issue 2132 by Vinzent.Steinberg: Derivative of RootSum http://code.google.com/p/sympy/issues/detail?id=2132
Do you use the general expand() or a specialized version, that does not try to expand everything? I think there are many low-hanging fruits in expand()...
-- You received this message because you are subscribed to the Google Groups "sympy-issues" group. To post to this group, send email to sympy-iss...@googlegroups.com. To unsubscribe from this group, send email to sympy-issues+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy-issues?hl=en.