Python如何计算两行数据内积

>>> a=mat([[1],[2],[3]]);

>>> b=mat([[0],[2],[3]]);

>>> a

matrix([[1],

        [2],      

        [3]])

>>> b

matrix([[0],

        [2],

        [3]])

>>> a.T*b

 matrix([[13]])

>>> a=mat([[1,2,3]]);

>>> b=mat([[0,2,3]]);

>>> a4 matrix([[1, 2, 3]])

>>> b6 matrix([[0, 2, 3]])

>>> a*b.T

matrix([[13]])

>>>