scipy_example
>>> from scipy import *
>>> a = matrix([[1, 2], [3, 4]])
>>> b = matrix([[3, 4], [5, 6]])
>>> a
matrix([[1, 2],
[3, 4]])
>>> b
matrix([[3, 4],
[5, 6]])
>>> a+b
matrix([[ 4, 6],
[ 8, 10]])
>>> a-b
matrix([[-2, -2],
[-2, -2]])
>>> a*b
matrix([[13, 16],
[29, 36]])
>>> b*a
matrix([[15, 22],
[23, 34]])
>>> a.I
matrix([[-2. , 1. ],
[ 1.5, -0.5]])
>>> a.T
matrix([[1, 3],
[2, 4]])
>>> from scipy import linalg
>>> linalg.det(a)
-2.0
