Parametric curve / Cubic harmonics

Cubic harmonic curve

Geometry

A unit-circle motion minus a cubed, high-frequency harmonic. Angles are in radians; the default trace runs from 0 to 2π.

x(t) = cos(t) − [cos(550t)]³
y(t) = sin(t) − [sin(550t)]³

Frequency and power are integers. The amplitude scales both subtracted terms.