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Hypocycloids swirling toward center: 3, 4, 5, 6, 2-1, 3-8, 5-5, 7-2.

Geometry: Special plane curve generated by trace of a fixed point on a small circle that rolls within a larger circle.

Comparable to the cycloid but instead of the circle rolling along a line, it rolls within a circle.

An epicycloid curve has a smaller circle revolving outside a larger circle's surface.

A hypocycloid curve revolves inside a larger circle's surface.

A special kind of hypotrochoid is a kind of roulette.

Three cusps = a deltoid, four cusps = an astroid.

Who's Buying? Customers in Shanghai, People's Republic of China.

Thinker Clothing™