A = Intersect(xAxis, yAxis)
B = Point(xAxis)
c = Circle(A, B)
P = Point(c)
v = Angle(B, A, P)
a = Segment(A, B)
b = Segment(A, P)
d = OrthogonalLine(P, xAxis)
e = OrthogonalLine(P, yAxis)
cos_v = Intersect(d, xAxis)
sin_v = Intersect(e, yAxis)