SpaceTest.multiply

SpaceTest.multiply(self)

Verify LinearSpace.multiply.

The vector multiplication is checked for the following properties:

• Zero element:

  0 * x = 0

• Commutativity:

  x * y = y * x

• Associativity:

  x * (y * z) = (x * y) * z

• Distributivity:

  a * (x + y) = a * x + a * y

  x * (y + z) = x * y + x * z