The pedal curve of a sinusoidal spiral
![r=a[cos(nt)]^(1/n)](/images/equations/SinusoidalSpiralPedalCurve/NumberedEquation1.svg) |
with pedal point at the center is another sinusoidal spiral with polar equation
![r=a[cos(nt)]^(1+1/n).](/images/equations/SinusoidalSpiralPedalCurve/NumberedEquation2.svg) |
A few examples are illustrated above.
Sinusoidal Spiral Pedal Curve
See also
Pedal Curve, Sinusoidal SpiralExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Sinusoidal Spiral Pedal Curve." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SinusoidalSpiralPedalCurve.html