A = Intersect(xAxis, yAxis)
B = Point(yAxis)
u = Vector(A, B)
C = Point(xAxis)
v = Vector(A, C)
D = Point(yAxis)
E = (2.38, 2.1)
f = Line(D, E)
F = Point(xAxis)
G = Point(f)
g = Line(F, G)
H = Point(v)
α = Angle(C, H, E)
β = Angle(A, F, G)
I = Point(g)
J = Point(f)
γ = Angle(I, G, J)
δ = Angle(J, G, F)