[Arjen Markus] (11 september 2002) I have had this idea fro some time now: create a set of procedures that will allow me to draw mathematical shapes like a torus or even a knot, colour them in ingenious ways, in short, play with 3D space.

The script below is just a start. It is not perfect, it is not flexible, but it does give you some sense of what I want.

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To come ...