Description:

The gsl package includes the GNU Scientific Library (GSL). The GSL is a
collection of routines for numerical analysis, written in C. The GSL is
in alpha development. It now includes a random number suite, an FFT
package, simulated annealing and root finding. In the future, it will
include numerical and Monte Carlo integration and special functions.
Linking against the GSL allows programs to access functions which can
handle many of the problems encountered in scientific computing.

Install the gsl package if you need a library for high-level scientific
numerical analysis.