C=C'

A = (0, 0)
B = (1, 0)
f = Line(A, B)
C = Point(f)
A' = (1.707290224331525, 0.8950525765529527)
g = Line(C, A')
h = Line(A, A')
B' = Point(g)
i = Line(B', B)
S = Intersect(h, i)
j = Line(S, g)
D = Intersect(f, j)
a = CrossRatio(A, B, C, D)
A'' = Mirror(A', C)
b = AffineRatio(A, B, C)
c = AffineRatio(A, B, D)
text2 = SurdText(C)