Deltoid

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A deltoid (or tricuspid) is the locus of a point on the circumference of a circle rolling inside another circle with a radius three times larger in magnitude. It is a hypocycloid, a curve formed by a point on the circumference of a rolling circle internally tangent to another, larger circle.

This curve was studied by Euler in 1745.

Expressions

Name Input
Parametric Equation Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
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