920.sagews

Algebra Lineal, Bernard Kolman octava edicion.

por: Mateo Espinel

encuentre el producto cruz de los vectores dados:

a) u = (2,3,4),  v = (-1,3,-1)

b) u = (1,0,1), v = (2,3,-1)

c) u = (1,-1,2), v = (3,-4,1)

problema a:

u = vector ([2,3,4])
v = vector ([-1,3,-1])

v.cross_product(u)

(15, 2, -9)

problema b:

u = vector ([1,0,1])
v = vector ([2,3,-1])

v.cross_product(u)

(3, -3, -3)

problema c:

u = vector ([1,-1,2])
v = vector ([3,-4,1])

v.cross_product(u)

(-7, -5, 1)