notebook.community

Edit and run



In [2]:

    
import numpy as np

a = np.array([[1., 2.],[3., 4.]])
b = np.array([[1., 2.],[2., 1.]])



In [3]:

    
a.dot(b)









    Out[3]:





array([[  5.,   4.],
       [ 11.,  10.]])



In [4]:

    
b.dot(a)









    Out[4]:





array([[  7.,  10.],
       [  5.,   8.]])



In [ ]: