# Intro To C++/Playing with '''''operator'''''

 Intro To C++ Variables Playing with '''''operator''''' Making statement

## Basic Math

C++ can be used to do basic math. The operators used in the basic math are listed in the table below.

Operator Operation
Arithmetic Operator ${\displaystyle +}$  addition
${\displaystyle -}$  Substraction
${\displaystyle +}$  Multiplication
${\displaystyle -}$  Division
${\displaystyle \%}$  Modulus
${\displaystyle ++}$  Increment
${\displaystyle --}$  Decrement
Assignment Operator ${\displaystyle =}$  "${\displaystyle a=b}$ " is equivalent to "${\displaystyle a=b}$ "
${\displaystyle +=}$  "${\displaystyle a+=b}$ " is equivalent to "${\displaystyle a=a+b}$ "
${\displaystyle -=}$  "${\displaystyle a-=b}$ " is equivalent to "${\displaystyle a=a-b}$ "
${\displaystyle *=}$  "${\displaystyle a+=b}$ " is equivalent to "${\displaystyle a=a*b}$ "
${\displaystyle /=}$  "${\displaystyle a/=b}$ " is equivalent to "${\displaystyle a=a/b}$ "
${\displaystyle \%=}$  "${\displaystyle a\%=b}$ " is equivalent to "${\displaystyle a=a\%b}$ "
Comparison Operator ${\displaystyle ==}$  Equality
${\displaystyle !=}$  Inequality
${\displaystyle >}$  Greater than
${\displaystyle <}$  Less than
${\displaystyle >=}$  Greater than or equal to
${\displaystyle <=}$  Less than or equal to
Logical Operator ${\displaystyle \&\&}$  Logical AND
${\displaystyle ||}$  Logical OR
${\displaystyle !}$  Logical NOT

Basic math operators in C++ have some distinguishing features:

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Part of Basic math operation is demonstrated in the C++ program below:

## Checking Size

The memory size of any variable can be discovered using the C++ sizeof operation.The sizeof operator syntax is look like this:

sizeof(var)

The sizeof operator is demonstrated in the program as follows:

## Casting Data Types

Any data-types except "string" could be converted to another data type through "casting". Casting syntax in C++ looks like this:

variable-name=static-cast <data-type> variable-name

Casting with C++ form is demonstrated in the program as follows: