Arithmetic Operators

Arithmetic operators are used to perform basic mathematical operations like addition, subtraction, multiplication and division. There are five arithmetic operators available in C (+, -, *, /, %). All arithmetic operators are binary operators, ie; they operate on two operands to produce the result.

The table below lists the arithmetic operators

Operator	Name	Description	Example
+	Addition Operator	'+' Operator adds two values. This operator works on integer, float and character variables.	20 + 10return 20
-	Subtraction Operator	'-' Operator produces a result after subtracting two values. It also works on integer, float, character variables.	20 - 10returns 10
*	Multiplication Operator	'*' Operator produces result after multiplication of operands.	20 * 10returns 200
/	Division Operator	'/' Operator produces result of division of first operand by second.	20 / 10returns 2
&	Modulus Operator	'%' Operator generates the remainder after integer division.	25 % 10returns 5

C Operators - Arithmetic, Assignment, Relational and Logical

Operator Basics

Operators in C language are symbols which tells the compiler to perform some mathematical calculations or logical operations (we will look at in a while) on the variables and constants. For example, consider the mathematical operation "10 + 2 - a". Here '+' and '-' are called operators and the values on which operators work ('10', '2', and 'a') are known as operands. C programming language has wide variety of operators which are categorised into different groups based on the type of operations they perform.

Operator Arity

Arity implies the number of operands the operator is defined to work on. Based on that we have operators of following articles

Arity	Description
Unary Operator	Operates on single operand.
Binary Operator	Operates on two operands, For example: '/' (used for division).
Ternary Operator	Operates on three operands. Example : conditional operator (we will discuss about it in this chapter).
n-ary Operator	Operators that operate on more than 3 operands.