Logarithmic Spiral Pedal Curve
The
Pedal Curve
of a
Logarithmic Spiral
with parametric equation
(1)
(2)
for a
Pedal Point
at the pole is an identical
Logarithmic Spiral
(3)
(4)
so
(5)
© 1996-9
Eric W. Weisstein
1999-05-25