FreeMat is an open-source programming environment designed as a free alternative to MATLAB and GNU Octave. It offers a wide range of functions similar to MATLAB, including matrix manipulation, data and function visualization, algorithm implementation, and more. Additionally, it incorporates features from IDL, provides interfaces for C, C++, and external Fortran, facilitates algorithmic development distribution, and enables the visualization of 3D elements and graph generation.

For users seeking a cost-effective and integrated development environment for mathematical computations, FreeMat stands out as a compelling choice. It competes with Octave, Scilab, and MATLAB itself, making it a noteworthy option in the realm of math software.