Arithmetic Operators in C¶

What are Arithmetic Operators?¶

Arithmetic operators are used to perform mathematical calculations like addition, subtraction, and multiplication. They are the most basic building blocks of programming logic.

Operator	Operation	Description
`+`	Addition	Adds two values together
`-`	Subtraction	Subtracts the right value from the left value
`*`	Multiplication	Multiplies two values
`/`	Division	Divides the left value by the right value
`%`	Modulus	Returns the remainder after division

Note: While the basic behavior is the same across languages, how they handle things like "Integer Division" (e.g., 5 / 2) can vary.

C Specific Behavior¶

In C, integer division always truncates the decimal part. There is no built-in exponent operator (you must use pow() from math.h).

Operator	Operation	Description
`++`	Increment	Increases the value by 1
`--`	Decrement	Decreases the value by 1

Code Example¶

#include <stdio.h>

int main() {
    int a = 10;
    int b = 3;

    printf("%d
", a + b);    // 13
    printf("%d
", a / b);    // 3 (Integer Division)

    a++;
    printf("%d
", a);        // 11

    return 0;
}