NSL - Numerical and Statistical Library

A collection of numerical and statistics functions extending the GNU Scientific library (GSL).
NSL is currently part of LabPlot but may be a separate library in the future if the API is not changing anymore.
NSL is written in plain C.

Tests can be found in labplot/tests/nsl/

Some releated links:

https://www.gnu.org/software/gsl/design/gsl-design.html
https://www.gnu.org/prep/standards/standards.html
