a = 8 (slider from 3 to 8, step 0.1)
b = 5.2 (slider from 1 to 6, step 0.1)
A = Point(yAxis)
c: a - b
d = Circle(A, c)
B, C = Intersect(d, xAxis)
e = Ray(A, C)
f = Circle(A, a)
P = Intersect(f, e)
g = Ray(A, B)
Q = Intersect(f, g)
a_1 = Segment(A, P)
i = Segment(A, Q)
D = Intersect(xAxis, yAxis)
k = Circle(D, a)
p = Circle(D, b)
b_1 = Segment(P, C)