Cactus Code Thorn GSL Author(s) : Erik Schnetter Maintainer(s): Cactus team Licence : GPL -------------------------------------------------------------------------- 1. Purpose Distribute the GNU Scientific Library; see . From the web site: The GNU Scientific Library (GSL) is a numerical library for C and C++ programmers. It is free software under the GNU General Public License. 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.