F = (4, -2)
E: (x(F) - 100, y(F))
s = Ray(F, E)
A = Point(s)
c = Circle(F, A)
C = Mirror(A, F)
j = OrthogonalLine(F, s)
B, G = Intersect(c, j)
e = CircleArc(F, G, C)
d = CircleArc(F, C, B)
h = Segment(A, F)
i = Segment(F, C)
p = Segment(B, F)
q = Segment(A, F)
r = Segment(F, C)
C' = Point(d)
ζ = Angle(C, F, C')
g = Segment(F, C')
γ = Angle(C', F, A)
C'_1 = Point(e)
α = Angle(C'_1, F, C)
f = Segment(F, C'_1)
D = (-1.1684902304887022, -5.169686337054751)