Python program to calculate square of a given number

Given a number, the task is to write a Python program to calculate the square of the given number. In this article, we will see how to square in Python.

Example:

Input: 4
Output: 16
Input: 3
Output: 9
Input: 10
Output: 100

Square of a Given Number in Python

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
• Using operator.pow() method
• Using bitwise Operators

Calculating Square of a Number Using Multiplication

In this approach, we will multiply the number with one another to get the square of the number. In this example, a variable n is assigned the value 4, and its square is calculated by multiplying it by itself. The result is then printed, yielding the square of 4, which is 16.

Output:

16

Python Calcluate a Number Square 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.

In this example, a variable n is assigned the value 4, and its square is calculated using the exponent operator **, resulting in the square of n. The computed square, 16, is then printed. In this way we can square in Python.

Output:

16

Squaring a Number 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.

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

In this example, the variable n is assigned the value 4, and its square is calculated using the pow method with arguments n and 2. The resulting square, 16, is then printed.

Output:

16.0

Python Squaring a Number Using operator.pow() method

In this example, a variable n is assigned the value 4, and its square is calculated using the pow method from the operator module with arguments n and 2. The computed square, 16, is then printed.

16

Time Complexity : O(N)
Auxiliary Space : O(1)

Calculating Square a Number Using bitwise Operators

This method uses the bitwise left shift operator (<<) to multiply the number by 2, effectively finding the square of the number.

8

Time complexity: O(1)
Auxiliary space: O(1) as it only uses a single variable to store the result.