An hypocycloid is a roulette traced by a point attached to a circle of radius r rolling around the inside of a fixed circle of radius R, where the point is a distance d from the center of the interior circle.

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14 Dec 2014

so cool!

01 Feb 2015

If inner disk radius divides by outer disk radius without remainder there will be only trace with "quotient" angle-loops (Like 300/100 = 3, so will be 3 angles)

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