Example: Determinant of 2x2 Matrix in C

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// Determinant of 2x2 Matrix
#include <stdio.h>

// Function to calculate determinant of a 2x2 matrix
int determinant2x2(int matrix[2][2]) {
    return (matrix[0][0] * matrix[1][1]) - (matrix[0][1] * matrix[1][0]);
}

int main() {
    // Step 1: Define a 2x2 matrix
    int matrix[2][2] = {
        {2, 3},
        {1, 4}
    };

    // Step 2: Calculate its determinant
    int det = determinant2x2(matrix);

    // Step 3: Print the result
    printf("The 2x2 matrix:\n");
    printf("%d %d\n", matrix[0][0], matrix[0][1]);
    printf("%d %d\n", matrix[1][0], matrix[1][1]);
    printf("Determinant = %d\n", det);

    return 0;
}