hypotrochoid
Sign in to savethumb|upright=1|The red curve is a hypotrochoid drawn as the smaller black circle rolls around inside the larger blue circle (parameters are ).
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- Subclass of
- roulette
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- HypotrochoidOutThreeFifths.gif
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- Commons category
- Hypotrochoids
- opposite of
- epitrochoid
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- WikiProject Mathematics
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thumb|upright=1|The red curve is a hypotrochoid drawn as the smaller black circle rolls around inside the larger blue circle (parameters are ).
In geometry, a hypotrochoid is a roulette traced by a point attached to a circle of radius rolling around the inside of a fixed circle of radius , where the point is a distance from the center of the interior circle.
Excerpted from Wikipedia’s “hypotrochoid” article, available under the CC BY-SA 4.0 licence.