Array indexing in NumPy allows you to access specific elements from an array.

Indexing an 1D Array :
Python 
import numpy as np arr = np.array([10, 20, 30, 40, 50]) print(arr[0]) print(arr[2]) #output 10 30

Negative Indexing :
Python 
import numpy as np arr = np.array([10, 20, 30, 40, 50]) print(arr[-1]) print(arr[-2]) #output 50 40

Indexing a 2D Array :
Python 
import numpy as np arr = np.array([[1, 2, 3], [4, 5, 6]]) print(arr[0, 1]) print(arr[1, 2]) #output 2 6