R Lang - R is a free software environment for statistical computing and graphics.
GNU Octave - GNU Octave is a programming language for scientific computing.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Nim (programming language) - The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.
Singular - Singular is the end-to-end marketing platform enabling marketers to connect, measure & optimize siloed marketing data in a single platform.
Derive - Derive 6.1: Powerful system for doing symbolic and numeric mathematics.