how to make this code faster

[davbrow at gmail.com]

It looks like you're using Numeric for your arrays, but you are then
pulling sin from the math module and calculating one point at a time.
Instead try using sin(whole array) where sin is a ufunc from the
Numeric module.  Also, it's usually not good practice to "import
Numeric as *".  Instead try import Numeric as N so it's clear which
functions you are using.

-- David