The PDL module gives standard perl the ability to COMPACTLY store and SPEEDILY manipulate the large N-dimensional data sets that are the bread and butter of scientific computing.
Tao is a software package for sound synthesis using physical models. It provides a virtual acoustic material constructed from masses and springs which can be used as the basis for building quite complex virtual musical instruments.
A tool for visualizing regular polytopes in stereographic projection. Capabilities include: a large database of Coxeter polytopes, 6-axis motion control, animation, fly-though, stereo viewing, high-res capture, depth-blur, and many style options.