C Tutorial - 5 - Simple Calculator

#include <stdio.h>

int main()
{
    printf("############################# \n");
    printf("\n");
    printf("Welcome to Simple Calculator  \n");
    printf("\n");
    printf("############################# \n");
    printf("\n");

    int firstNumber = 13;
    int secondNumber = 5;

    int add = firstNumber + secondNumber;
    int sub = firstNumber - secondNumber;
    int mul = firstNumber * secondNumber;
    int div = firstNumber / secondNumber;
    int rem = firstNumber % secondNumber;

    printf("Add: %d \n", add);
    printf("Sub: %d \n", sub);
    printf("Mul: %d \n", mul);
    printf("Div: %d \n", div);
    printf("Rem: %d \n", rem);

    return 0;
}

Result:

#############################

Welcome to Simple Calculator

#############################

Add: 18
Sub: 8
Mul: 65
Div: 2
Rem: 3

Process returned 0 (0x0)   execution time : 0.160 s
Press any key to continue.

In programming, the modulo operation, denoted by the % symbol, is a mathematical operation that calculates the remainder when one integer is divided by another. For example, 7 % 3 would evaluate to 1 because 3 divides into 7 twice with a remainder of 1.

The modulo operation is useful in programming for a variety of tasks, such as determining whether a number is even or odd (even numbers will have a remainder of 0 when divided by 2), or determining whether a given number is a multiple of another number (a number is a multiple of another if its modulo operation with the other number results in 0).

 

Do we have modulo in other programming languages

Yes, modulo is a common operation in many programming languages. In fact, most programming languages provide a modulo operator. Here are some examples:

• Python: % operator
• Java: % operator
• JavaScript: % operator
• PHP: % operator
• Ruby: % operator
• C#: % operator
• Perl: % operator

The syntax may vary slightly between programming languages, but the concept and functionality of the modulo operation remain the same.