Check if Matrix is Diagonal (Non-zero only on Main Diagonal) Dry Run in C

Check if Matrix is Diagonal (Non-zero only on Main Diagonal) is an interactive C dry run visualizer from the Two D programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Check if Matrix is Diagonal (Non-zero only on Main Diagonal) Program Code

#include <stdio.h>
int main() {
    int matrix[3][3] = {{5, 0, 0}, {0, 7, 0}, {0, 0, 9}}, i, j;
    int isDiagonal = 1;
    
    for(i = 0; i < 3; i++) {
        for(j = 0; j < 3; j++) {
            if(i != j && matrix[i][j] != 0) {
                isDiagonal = 0;
                break;
            }
        }
    }
    
    if(isDiagonal)
        printf("Matrix is Diagonal Matrix\n");
    else
        printf("Matrix is NOT Diagonal Matrix\n");
    return 0;
}

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