Kardioide

als Katakaustik

Ha 05

A = Intersect(xAxis, yAxis)
B = Point(xAxis)
c = Circle(A, B)
C, D = Intersect(c, xAxis)
Q = Point(c)
a = Line(D, Q)
b = Segment(Q, A)
d = Mirror(a, b)
E, F = Intersect(c, d)
e = Segment(Q, E)