Talk:Pedal equation

Applications?
i can understand what is pedal equation but i want to know what is use of pedal equation??
 * Some curves can be more simply described in pedal coordinates than in other coordinate systems. DS (talk) 14:07, 21 August 2011 (UTC)

Sketch?
At the beginning, a sketch of some curve showing r and p etc would be nice. — Preceding unsigned comment added by 79.75.153.201 (talk) 14:34, 28 December 2018 (UTC)