Python Program - Multiply Two Matrices

Here's a Python program that multiplies two matrices using nested loops:

# Define two matrices
A = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
B = [[10, 11, 12], [13, 14, 15], [16, 17, 18]]

# Define an empty result matrix
result = [[0, 0, 0], [0, 0, 0], [0, 0, 0]]

# Iterate through rows of A
for i in range(len(A)):
    # Iterate through columns of B
    for j in range(len(B[0])):
        # Iterate through rows of B
        for k in range(len(B)):
            # Update the corresponding element of the result matrix
            result[i][j] += A[i][k] * B[k][j]

# Display the result matrix
for row in result:
    print(row)

This program defines two matrices, A and B, as nested lists. It then defines an empty matrix result that will store the result of multiplying A and B. The program uses nested loops to iterate through the rows of A, the columns of B, and the rows of B. For each combination of indices (i, j, k), the program multiplies the corresponding elements of A and B and adds the result to the corresponding element of result. Finally, the program displays the result matrix.