O = Intersect(xAxis, yAxis)
c = Circle(O, 1.0)
t = 3.81 (slider from 0 to 6.283185307179586, step 0.01)
A = Point(c)
C = Rotate(A, t, O)
α = Angle(A, O, C)
d = CircleArc(O, A, C)
a = Line(O, C)
b = OrthogonalLine(C, a)
M = Mirror(O, b)
e = Circle(M, 1.0)
P = Mirror(A, b)
f = CircleArc(M, C, P)