Hey! Can someone confirm, that code below is valid and I am not abusing anything? :)
#!/usr/bin/python from sympy import * F = Function('F') x, y, t = symbols('x y t') a = Symbol('a', Real=True) eq = Derivative(F(x, t), x) pat = -33*t*x + F(x + exp(-t)) sub = eq.subs(F(x, t), pat) print "Fails after print?" print sub --~--~---------~--~----~------------~-------~--~----~ 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 sympy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sympy?hl=en -~----------~----~----~----~------~----~------~--~---