Arithmetic Operators: C++ supports these arithmetic operator.
Operator Symbol Form
Addition + x+y
Subtraction - x-y
Multiplication * x*y
Division / x/y
Modulus % x%y
Addition: The addition operator adds its operands together.
int x=2+3;
cout<<x;
Output:
5
Subtraction: The subtraction operator subtracts one operands from the other.
int x=5-3;
cout<<x;
Output:
2
Multiplication: The multiplication operator multiplies its operands.
int x=3*2;
cout<<x;
Output:
6
Division: The division operator divides the first operand by the second. Any remainder is dropped in order to return an integer value.
int x=10/3;
cout<<x;
Output:
3
If one or both of the operands are floating point values,the division operator performs floating point division.
Modulus: The modulus operator (%) is informally know as the remainder operator because it returns the remainder after an integer division.
int x=25%6;
cout<<x;
Output:
1
Operator Precedence: Operator precedence determines the grouping of terms in an expression,which affects how an expression is evaluated certain operators take higher precedence over others; for example, the multiplication operator has higher precedence over the addition operator.
For example:
int x=5+2*2;
cout<<x;
Output:
9
The program evaluates 2*2 first, and then adds the result 5.
As in mathematics,using parentheses alters operator precedence.
int x=(5+2)*2;
cout<<x;
Output:
14
