The pedal curve of circle involute
(1)
| |||
(2)
|
with the center as the pedal point is the Archimedes' spiral
(3)
| |||
(4)
|
The pedal curve of circle involute
(1)
| |||
(2)
|
with the center as the pedal point is the Archimedes' spiral
(3)
| |||
(4)
|
Weisstein, Eric W. "Circle Involute Pedal Curve." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/CircleInvolutePedalCurve.html