Číslo kroku

A = (-3.8442242988972173, 1.428660725991728)
B = (-0.911512279956086, 1.0362555966967877)
c = Circle(A, B)
f = Line(A, B)
C = Point(f)
d = Circle(C, B)
D = Point(f)
g = OrthogonalLine(D, f)
S = Midpoint(B, D)
e = Circle(S, D)
a = 0 (slider from 0 to 5, step 1)