Print Checkboard Pattern of N x N Using Numpy

Given the value of n, our task is to display the check board pattern for a n x n matrix.

Different types of functions to create arrays with initial value are available in numpy . NumPy is the fundamental package for scientific computing in Python.

Algorithm

Step 1: input order of the matrix.
Step 2: create n*n matrix using zeros((n, n), dtype=int).
Step 3: fill with 1 the alternate rows and columns using a slicing technique.
Step 4: print the matrix.

Example Code

import numpy as np 
def checkboardpattern(n): 
   print("Checkerboard pattern:") 
   x = np.zeros((n, n), dtype = int) 
   x[1::2, ::2] = 1
   x[::2, 1::2] = 1
   # print the pattern 
   for i in range(n): 
      for j in range(n): 
         print(x[i][j], end =" ")  
      print()  
# Driver code 
n = int(input("Enter value of n ::>"))
checkboardpattern(n) 

Output

Enter value of n ::>4
Checkerboard pattern:
0 1 0 1  
1 0 1 0  
0 1 0 1  
1 0 1 0