np subarray code example

Example 1: taking subarray of numpy array

>>> a
array([[1, 2, 3],
       [4, 5, 6],
       [7, 8, 9]])
>>> a[:2,:2]
array([[1, 2],
       [4, 5]])

Example 2: numpy subarray

>>> a
array([[1, 2, 3],
       [4, 5, 6],
       [7, 8, 9]])

>>> a[:2,:2]
array([[1, 2],
       [4, 5]])