Python program to print check board pattern of n*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 the 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