Umbrella

Pretty Pictures

Mark Fickett Photography and Miscellanea

Filigrams: A New Type of Pretty Picture, and Constructing Polyhedra from Repelling Points on a Sphere. Quoth the page, parenthetically, of Filigrams: "(Warning to non-mathematicians: this section may get a little intense. But there are pretty pictures to look at, so that's all right :-)"

Both by Simon Tatham, link courtesy of my sibling.

2004 Aug 28
filigrams math matthew sum
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