Example: Matrix Subtraction Program

// Matrix Subtraction
#include <stdio.h>

#define ROW 3
#define COL 3

// Function to print a matrix
void printMatrix(int matrix[ROW][COL]) {
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }
}

int main() {
    // Step 1: Define matrices A and B
    int matrixA[ROW][COL] = {
        {10, 20, 30},
        {40, 50, 60},
        {70, 80, 90}
    };

    int matrixB[ROW][COL] = {
        {1, 2, 3},
        {4, 5, 6},
        {7, 8, 9}
    };

    int diffMatrix[ROW][COL]; // To store the result

    printf("Matrix A:\n");
    printMatrix(matrixA);
    printf("\nMatrix B:\n");
    printMatrix(matrixB);

    // Step 2: Perform subtraction
    // Condition: Matrices must have the same dimensions for subtraction.
    printf("\nPerforming Matrix Subtraction (A - B):\n");
    for (int i = 0; i < ROW; i++) {
        for (int j = 0; j < COL; j++) {
            diffMatrix[i][j] = matrixA[i][j] - matrixB[i][j];
        }
    }

    // Step 3: Print the result
    printf("Difference Matrix:\n");
    printMatrix(diffMatrix);

    return 0;
}