This year’s Diagram Prize for oddest book title goes to Crocheting Adventures with Hyperbolic Planes, by mathematician Dr. Daina Taimina.
A hyberbolic plane is a “two-dimensional quadratic space with a non-singular isotropic quadratic form”. This:
Crochet model of hyperbolic plane by Daina Taimina
Visit Dr. Daina Taimina online.
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