A1: -5
A2: -3
A3: 2
B1: 1
B2: 5
B3: 2
A = (-5, 1)
B = (-3, 5)
C = (2, 2)
u = Segment(A, B)
v = Segment(B, C)
t = 0.3 (slider from 0 to 1, step 0.1)
c = Circle(A, (t * u))
d = Circle(B, (t * v))
D = Intersect(c, u)
E = Intersect(d, v)
w = Segment(D, E)
e = Circle(D, (t * w))
P = Intersect(e, w)
Ortslinie1 = Locus(P, t)