>>> a
matrix([[1, 2],
        [3, 4]])
>>> b
matrix([[5, 6],
        [7, 8]])
>>> a*b
matrix([[19, 22],
        [43, 50]])
        
##################################
##################################

>>> m1
matrix([[1, 2, 3],
        [4, 5, 6]])
>>> m2
matrix([[1, 2],
        [3, 4],
        [5, 6]])
>>> m1*m2
matrix([[22, 28],
        [49, 64]])
>>> m2*m1
matrix([[ 9, 12, 15],
        [19, 26, 33],
        [29, 40, 51]])