Segmentos

B = (1, 3, 0)
A = (1, 2, -1)
a = Vector((0, 0), A)
b = Vector((0, 0), B)
a_1: (a * b)
axb: a ⊗ b
O = (0, 0)
C: O + a + b
paralelogramo, b_1, c, h, i = Polygon(O, A, C, B)
B': (x(B), y(B))
d = Segment(B, B')
C': (x(C), y(C))
e = Segment(C, C')
A': (x(A), y(A))
f = Segment(A, A')
D: O + axb
D': (x(D), y(D))
g = Segment(D, D')
α = Angle(A, O, B)
β = Angle(A, O, D)
γ = Angle(B, O, D)
j = false
α_2 = Angle(B, O, A)
suma: a + b
dif: a - b