[FOM] Compass and straight edge constructions

[Pietro Milici]

A (nearly practical) machine that unifies and extends ruler and compass
constructions is the one tracing logarithmic spirals. It solves
the n-section of any angle. At my knowledge, limits of such constructions
have not yet been defined. (Cf. Milici, P., and R. Dawson. "The equiangular
compass." *The Mathematical Intelligencer* (2012): 1-5.)

Pietro
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