Scalar Multiplication (Multiply Matrix by a Number) Dry Run in C

Scalar Multiplication (Multiply Matrix by a Number) 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.

Scalar Multiplication (Multiply Matrix by a Number) Program Code

#include <stdio.h>
int main() {
    int matrix[2][2] = {{1, 2}, {3, 4}}, i, j;
    int scalar = 3;
    
    for(i = 0; i < 2; i++) {
        for(j = 0; j < 2; j++) {
            matrix[i][j] *= scalar;
        }
    }
    
    printf("Matrix after scalar multiplication:\n");
    for(i = 0; i < 2; i++) {
        for(j = 0; j < 2; j++) {
            printf("%d ", matrix[i][j]);
        }
        printf("\n");
    }
    return 0;
}

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