a = u*v    finestra algebra

Producte VECTORIAL
Area Triangle = 1/2 u^v =|u|·|v| sin(α)

Producte  ESCALAR

A = (2, 4)
B = (5, 6)
C = (7, 2)
u = Vector(A, B)
v = Vector(A, C)
a: u v
D = (7, 2)
poly1, d, a_1, b = Polygon(A, B, D)