A: (-2, -1)
B: (2, 2)
C: (0, 4)
u = Vector(A, B)
v = Vector(A, C)
a: (u * v)
f = OrthogonalLine(C, u)
g = Line(A, B)
H = Intersect(g, f)
α = Angle(B, A, C)
β = Angle(B, H, C)
texte1 = LaTeX(f, true, true)
h = Segment(C, B)
δ = Angle(C, B, A)
b = Distance(A, H)
texte2 = LaTeX(b, true, true)
d = Distance(B, C)
c: sqrt(8)
e = Distance(A, C)
i: sqrt(29)
j: 6 / ((sqrt(29) * sqrt(8)))
ε: acosd(j)
γ = Angle(A, C, B)