How to Create an N×N Matrix in Python

Submitted by razormist on Monday, May 25, 2026 - 23:32.

In this tutorial, we will learn how to program "How to Create an N×N Matrix in Python". The objective is to create an N×N matrix. This tutorial will guide you step by step through the process of generating a matrix. By the end of this tutorial, you will have a solid understanding of how to implement this solution effectively in Python, helping you strengthen your problem-solving abilities and improve your coding skills.

This topic is straightforward and easy to understand. By following the instructions provided, you will be able to complete it with ease. The program will guide you step by step through the process of creating an N×N matrix. So, let’s dive into the coding process!

Getting Started:

First you will have to download & install the Python IDLE's, here's the link for the Integrated Development And Learning Environment for Python https://www.python.org/downloads/.

Creating Main Function

This is the main function of the application. The following code will display a simple GUI in terminal console that will display program. To do this, simply copy and paste these blocks of code into the IDLE text editor.

import numpy as np
 
# MAIN LOOP
while True:
    print("\n============= Create an N×N Matrix =============\n")
 
    # Input handling
    try:
        n = int(input("Enter the size of the matrix (N): "))
 
        if n <= 0:
            print("Size must be greater than 0.")
            continue
 
    except ValueError:
        print("Invalid input. Please enter an integer.")
        continue
 
    # Create N x N matrix filled with zeros
    m = np.zeros((n, n), dtype=int)
 
    print(f"\n{n}×{n} Matrix:")
    print(m)
 
    # Try Again Option
    opt = input("\nDo you want to try again? (yes/no): ").strip().lower()
 
    if opt == 'no':
        print("Exiting program...")
        break
    elif opt != 'yes':
        print("Invalid choice. Exiting program...")
        break

This Python program creates an N×N matrix filled with zeros using the NumPy library. It takes an integer input `N` from the user, validates it, and generates a square matrix of size `N×N` using `np.zeros()`. The resulting matrix is then displayed. The program runs interactively, allowing users to create multiple matrices or exit, with input validation included.

Output:

There you have it we successfully created How to Create an N×N Matrix in Python. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

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