A = (-1.8, -1.34)
B = (0.74, -0.42)
u = Vector(A, B)
C = (1.68, -2.06)
D = (-1.34, -1.6400000000000001)
v = Vector(C, D)
w: u + v
E = (0.8, 1.82)
F = (2.2600000000000002, 2.68)
a = Segment(E, F)
z: u + a * v
f(x) = u * v * x^(2.0)
G: F + u
H: G - w
I: u - H
b: u * v
c: u * v * u