Example: C Program to Find Trace and Normal of a Matrix using For loop

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// C Program to Find Trace and Normal of a Matrix using For loop
#include <stdio.h>
#include <math.h>

int main() {
    int i, j, n, sum = 0, sum1 = 0, a = 0, normal;

    printf("\nEnter the number of rows[columns] of the matrix::\n\n");
    scanf("%d", &n);
    
    int x[n][n];

    printf("\n----Enter the %d elements of the first matrix----\n\n", n * n);

    for(i = 0; i < n; i++) {
        for(j = 0; j < n; j++) {
            scanf("%d", &x[i][j]);
            a = x[i][j]*x[i][j];
            sum1 += a;
        }
    }
    
    normal = sqrt((double)sum1);

    printf("\n\nThe normal of the given matrix is: %d", normal);
    for(i = 0; i < n; i++) {
        sum = sum + x[i][i];
    }
    
    printf("\n\nThe Trace of the given matrix is: %d\n", sum);
    return 0;
}