hypocycloid[hī′pō sī′klo̵id′, -pə-; also hip′ō-, hip′ə-]
Origin: hypo- plush cycloid
Used by arrangement with John Wiley & Sons, Inc.
If a equals the radius of a fixed circle and b equals the radius of a smaller rotating circle, the parametric equations of the hypocycloid are: x = (a - b) cosΘ + b cos [(a - b)Θ]/b
y=(a - b) sinΘ - b sin[( a - b)Θ]/b
hypocycloid - Science Definition
a = radius of fixed circle; b = radius of rotating circle
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