This is a iPython notebook

It can be used to test stuff or write small pieces of software which can be run in the browser.



In [1]:

    
print("Hello World!")









    



Hello World!



In [2]:

    
import numpy as np
a = np.array([[1,2,3],[4,5,6]])
a









    Out[2]:





array([[1, 2, 3],
       [4, 5, 6]])



In [3]:

    
a.shape









    Out[3]:





(2, 3)