Trochoid
The curve described by a point at a distance 
from the center of a rolling Circle of Radius 
.
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If
, the curve is a Curtate Cycloid. If 
, the curve is a Cycloid. If 
, the curve is aProlate Cycloid.See also Curtate Cycloid, Cycloid, Prolate Cycloid
References
Lee, X. ``Trochoid.''http://www.best.com/~xah/SpecialPlaneCurves_dir/Trochoid_dir/trochoid.html. Wagon, S. Mathematica in Action. New York: W. H. Freeman, pp. 46-50, 1991. Yates, R. C. ``Trochoids.'' A Handbook on Curves and Their Properties. Ann Arbor, MI: J. W. Edwards, pp. 233-236, 1952.
- Discrete Fourier Transform
- Discrete Mathematics
- Discrete Set
- Discrete Uniform Distribution
- Discriminant
- Discriminant (Binary Quadratic Form)
- Discriminant (Elliptic Curve)
- Discriminant (Metric)
- Discriminant (Module)
- Discriminant (Polynomial)
- Discriminant (Quadratic Curve)
- Discriminant (Quadratic Form)
- Discriminant (Second Derivative Test)
- Disdyakis Dodecahedron
- Disdyakis Triacontahedron
- Disjoint
- Disjunction
- Disjunctive Game
- Disk
- Disk Covering Problem
- Disk Lattice Points
- Dispersion Numbers
- Dispersion Relation
- Dispersion (Sequence)
- Dispersion (Statistics)