Číslo kroku

S = (0.74, 2.26)
Y = (3.48, -0.44)
k = Circle(S, Y)
A = (1, 3.94)
c = Circle(S, A)
B = Point(c)
d = Circle(B, A)
k' = Mirror(k, d)
f, g = Tangent(A, k')
k_2 = Mirror(g, d)
k_1 = Mirror(f, d)
a = 0 (slider from 0 to 5, step 1)