Roulette curve 71

by Firkin - uploaded on November 25, 2015, 8:12 am

A spirograph-type curve such as would be obtained by rolling around the inside of the curve described in polar coordinates as r = 1-cos(3A) a circle with radius 0.228 for ten revolutions, the drawing point being 0.297 from the circle's centre.

hypocycloid hypotrochoid roulette spiral spirograph
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