D = Point(xAxis)
E = Point(xAxis)
C = Point(xAxis)
a = Ray(D, E)
b = Ray(D, C)
A = Point(a)
B = Point(b)
f(x) = 20
g(x) = -20
c = Integral(f, g, x(A), x(B))
d: x = x(A)
e: x = x(B)
k1: abs(x(A) + 1) + abs(x(B) - 5)
k2 = If(k1 < 0.1, 0, 100)