The octave-forge package is the result of The GNU Octave Repositry project,
which is intended to be a central location for custom scripts, functions and
extensions for GNU Octave. contains the source for all the functions plus
build and install scripts.

This is velas.

 VELAS is a user-friendly open-source toolbox for the visualization and
analysis of elastic anisotropy written in GNU Octave that can be used for any
crystal symmetry.