Hi, I know that some dislike _diff_wrt, however admitting for the moment that it is a good idea, can somebody help me with making this work:
In [1]: class Blah(Expr): ...: _diff_wrt = True In [2]: c = Blah(1,2,3) In [3]: (2*c).diff(c) AttributeError: 'int' object has no attribute 'is_number' Why does diff care about the int inside `c`? Why doesn't this work? -- 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.
