2009/2/23 Markus Rosenstihl <markus.rosenstihl@physik.tu-darmstadt.de>: >> Another script "controller.py" calls this function as: >> >> [code]#! /usr/bin/env python >> # from numpy import * > ^ This is a comment, you are not importing numpy! But he is also not using numpy in controller. Cheers Stéfan