Description:

Numarray provides array manipulation and computational capabilities
similar to those found in IDL, Matlab, or Octave. Using numarray, it
is possible to write many efficient numerical data processing
applications directly in Python without using any C, C++ or Fortran
code (as well as doing such analysis interactively within Python or
PyRAF). For algorithms that are not well suited for efficient
computation using array facilities it is possible to write C functions
(and eventually Fortran) that can read and write numarray arrays that
can be called from Python.

Numarray is a re-implementation of an older Python array module called
Numeric. In general its interface is very similar. It is mostly
backward compatible and will be becoming more so in future releases.