v = 1/2 u

w= -1/2 u

BM = - 1/2 u

AM = 1/2 u

A = Point({1, 2, 1})
M = Point({-1, 3, 2})
B = Point({-3, 4, 3})
v = Vector(A, M)
U = Point({-4, 2, 2})
u = Vector(U)
medioPuntoU = Point({-2, 1, 1})
medioU = Vector(medioPuntoU)
AB = Segment(A, B)
OM = Vector(M)
OA = Vector(A)
OB = Vector(B)
puntoMv = Point({2, -1, -1})
mv = Vector(puntoMv)
BM = Vector(B, M)
AM = Vector(A, M)