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# Python profram to calculate square of a given number

• Last Updated : 03 Jan, 2021

Given a number, the task is to write a Python program to calculate square of the given number.

Examples:

```Input: 4
Output: 16

Input: 3
Output: 9

Input: 10
Output: 100```

We will provide the number, and we will get the square of that number as output. We have three ways to do so:

• Multiplying the number to get the square (N * N)
• Using Exponent Operator
• Using math.pow() Method

Method 1: Multiplication

In this approach, we will multiply the number with one another to get the square of the number.

Example:

## Python3

 `# Declaring the number.``n ``=` `4`` ` `# Finding square by multiplying them``# with each other``square ``=` `n ``*` `n`` ` `# Printing square``print``(square)`

Output:

`16`

Method 2: Using Exponent Operator

In this approach, we use the exponent operator to find the square of the number.

Exponent Operator: **

Return: a ** b will return a raised to power b as output.

Example:

## Python3

 `# Declaring the number.``n ``=` `4`` ` `# Finding square by using exponent operator``# This will yield n power 2 i.e. square of n``square ``=` `n ``*``*` `2`` ` `# Printing square``print``(square)`

Output:

`16`

Method 3: Using pow() Method

In this approach, we will use the pow() method to find the square of the number. This function computes x**y and returns a float value as output.

Syntax: float pow(x,y)

Parameters :

x : Number whose power has to be calculated.

y : Value raised to compute power.

Return Value :
Returns the value x**y in float.

Example:

## Python3

 `# Declaring the number.``n ``=` `4`` ` `# Finding square by using pow method``# This will yield n power 2 i.e. square of n``square ``=` `pow``(n, ``2``)`` ` `# Printing square``print``(square)`

Output:

`16.0`

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