This document discusses arithmetic operators in C language. It defines operators as symbols that take operands and perform computations. Operands are variables or expressions used with operators. Combining operands and operators forms expressions. Arithmetic operators are binary operators that take two numeric operands and perform addition, subtraction, multiplication, division, and modulus operations. The order in which operators are evaluated, known as precedence and associativity, is also discussed along with an example program demonstrating arithmetic operators.

1. Government polytechnic
Dehradun
TOPIC:- C Arithmetic Operators
PREPARED By- Gaurav
Nautiyal

2. ▪ Operators are symbols which take one or more
operands or expressions and perform arithmetic or
logical computations.
▪ Operands are variables or expressions which are
used in conjunction with operators to evaluate the
expression.
▪ Combination of operands and operators form an
expression.
OPERATORS

3. ARITHMETIC OPERATORS
oThese are “Binary Operators” as they take two
operands.
o The operands must be ”Numeric Value”.
oWhen both the operands are integer , then the
result is integer. But when one of them is floating
point and other is integer then the result is floating
point.
oExcept “% ” operators, all the arithmetic operators
can be used with any type of numeric operands(either
operands are integer or floating point), while “%”
operator can only be used with integer data type only.

4. Expressions
Example 2 * y + 5
Operands
Combination of Operators and Operands
Operators

5. TYPES OF OPERATORS
-C language provides following operators:-

6. Arithmetic Operators
oAs the name is given, arithmetic operators perform
arithmetic operations.
o C language provides following arithmetic operators.
Operator name Meaning
+ Addition
- Subtraction
* Multiplication
/ Division
% Modulus(Reminder after division)

7. Operator Precedence and Associativity in
C
The concept of operator precedence and
associativity in C helps in determining which
operators will be given priority when there
are multiple operators in the expression. It
is very common to have multiple operators in
C language and the compiler first evaluates
the operater with higher precedence. It
helps to maintain the ambiguity of the
expression and helps us in avoiding
unnecessary use of parenthesis.

9. Example of Operator Precedence

10. Associativity in C
Operator precedence determines which operation
is performed first in an expression with more
than one operator with different precedence.
Example

11. SMALL EXAMPLE TO ILLUSTRATE THE
USE OFARITHMETIC OPERATORS
#include<stdio.h>
#include<conio.h>
Void main()
{
float a=4,b=2,sum,sub,mul,div;
clrscr();
sum=a+b;
sub=a-b;
mul=a*b;
div=a/b;
printf(“summation of a and b=%fnsubtractionof and b=
%fnmultiplicationof and b=%fndivision of a and b=
%f,sum,sub,mul,div”);
getch();
}

12. Output of the following code will be like this:
summation of a and b=6.000000
subtraction of a and b=2.000000
multiplication of a and b=8.000000
division of a and b=2.000000