Hello, I can not do
In [272]: var('a b') Out[272]: (a, b) In [273]: expr = sqrt(a)*exp(b) In [274]: expr.subs(sqrt(a), 1) [...] <type 'exceptions.AttributeError'>: 'Basic' object has no attribute 'Log' By, Friedrich --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sympy?hl=en -~----------~----~----~----~------~----~------~--~---