The inverse curve of a sinusoidal spiral
with inversion center at the origin and inversion radius is another sinusoidal spiral
The inverse curve of a sinusoidal spiral
with inversion center at the origin and inversion radius is another sinusoidal spiral
Weisstein, Eric W. "Sinusoidal Spiral Inverse Curve." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SinusoidalSpiralInverseCurve.html