Chebfun is a collection of algorithms and a software system in object-oriented MATLAB that extends familiar powerful methods of numerical computation involving numbers to continuous or piecewise-continuous functions. It also implements continuous analogues of linear algebra notions like the QR decomposition and the SVD, and solves ordinary differential equations. The mathematical basis of the system combines tools of Chebyshev expansions, fast Fourier transform, barycentric interpolation, recursive zerofinding, and automatic differentiation.
PyCAM generates toolpaths (GCode) for CNC machines out of 3D STL model files or 2D gravure contour files (SVG or DXF). The output of PyCAM can be imported into EMC2 or other machine controllers to direct the milling machine. PyCAM features different path generation strategies, cutter shapes, and post-processing options.