## Freeth's nephroid (polar)

The Freeth's nephroid (polar) is a special case of hypocycloid. The curve is a strophoid of a circle with the pole O at the center of the circle and the fixed point P on the circumference of the circle.

Get copyable formulas for Freeth's nephroid (polar) from Differential Geometry Library (MathML, TeX, Mathematica input, Maple input)

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