> expr1 = expr.subs(x,y) This won't work because it will transform x**2+y**2 into 2*y**2
There must be something already implemented in the poly module, however I do not know enough about it to tell. -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. 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.
