Chicken - A portable and efficient cross-platform Scheme implementation that compiles to C.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Guile - Guile is the GNU Ubiquitous Intelligent Language for Extensions, the official extension language for the GNU operating system.
FreeCAD - An open-source parametric 3D modeler
Racket Lang - Racket (formerly PLT Scheme) is a modern programming language in the Lisp/Scheme family, suitable...
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming