GSL on Helix
The GNU Scientific Library (GSL) is a collection of routines for numerical analysis, written in C. The library provides a wide range of mathematical routines such as random number generators, special functions and least-squares fitting. There are over 1000 functions in total with an extensive test suite.
Sample Session on Helix
gsl-histogramare provided, each with a man page.
A perl interface is also available, accessed in a perl script by entering