From Rosetta Code
This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.
NumPy is a numerical mathematics extension to the Python programming language.

It adds support for large, multi-dimensional arrays and matrices, along with a large library of high-level mathematical functions to operate on these arrays.

Websites - -
Current version
NumPy 1.9.1 released 2014-11-02

SciPy makes use of NumPy and matplotlib.

See also
MATLAB, LabVIEW, Julia, GNU Octave, PARI/GP, R, SciLab, Yorick