Introduction

Program To Display 3*3 Matrix

In this guide, we’ll learn how to create and display a 3×3 matrix in Python program . A matrix is simply a collection of numbers arranged in rows and columns, like a grid. Here, we’ll use Python lists to represent our matrix and print it out in a neat format.

Python Program to Display a 3×3 Matrix

# Function to display a 3x3 matrix
def display_matrix(matrix):
    for row in matrix:
        for element in row:
            print(element, end=" ")
        print()  # Move to the next line after each row

# Main function to run the program
def main():
    # Define a 3x3 matrix
    matrix = [
        [1, 2, 3],
        [4, 5, 6],
        [7, 8, 9]
    ]
    
    # Display the matrix
    print("Here is the 3x3 matrix:")
    display_matrix(matrix)

# Execute the main function
if __name__ == "__main__":
    main()

Steps Explained

We create a 3×3 matrix by using a list of lists.

Each small list represents a row of the matrix. In the code, the matrix looks like this:

matrix = [
    [1, 2, 3],
    [4, 5, 6],
    [7, 8, 9]
]

1. Displaying the Matrix

2. Program:

   • The display_matrix() function is responsible for printing the matrix.

   • We use two loops: the first loop goes through each row, and the second loop goes through each element in that row.

   • print(element, end=" ") prints each number on the same line with a space in between.

   • After printing all elements in a row, print() moves to the next line, so each row appears on a new line.

3. Running the Program:

   • The main() function is where the matrix is defined and then displayed.

   • The line if __name__ == "__main__": ensures the program runs when you execute the script.

Output

When you run the code, you’ll see this output:

Here is the 3x3 matrix:
1 2 3 
4 5 6 
7 8 9 

Conclusion

This simple program shows how to create and display a 3×3 matrix in Python. By following these steps, you can understand how matrices work and how to manipulate and display them using basic Python code. This is a foundational concept that you can build upon as you learn more about programming and working with data.

1. Python.org
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2. W3Schools – Python Tutorial
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4. Real Python
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5. Codecademy – Learn Python
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