ScientificPython is a collection of Python modules that are useful for
scientific computing. In this collection you will find modules that
cover basic geometry (vectors, tensors, transformations, vector and
tensor fields), quaternions, automatic derivatives, (linear)
interpolation, polynomials, elementary statistics, nonlinear
least-squares fits, unit calculations, Fortran-compatible text
formatting, 3D visualization via VRML, and two Tk widgets for simple
line plots and 3D wireframe models.

WWW: http://dirac.cnrs-orleans.fr/ScientificPython/