Hi, I am very happy with the Expression, but old code like class Dabla(Function): def eval(...)
still works. The only problem is that the function is zero even though eval is implemented. Is it possible to turn this old code into an error? It would prevent some debugging, I think. Kent _______________________________________________ DOLFIN-dev mailing list DOLFIN-dev@fenics.org http://www.fenics.org/mailman/listinfo/dolfin-dev