Limacon Evolute
The catacaustic of a circle for a radiant point is the limaçon evolute. It has parametric equations
 |  | ![(a[4a^2+4b^2+9abcost-abcos(3t)])/(4(2a^2+b^2+3abcost))](/images/equations/LimaconEvolute/Inline3.svg) |
(1)
|
 |  |  |
(2)
|
Limaçon Evolute
See also
Evolute, LimaçonExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Limaçon Evolute." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/LimaconEvolute.html