Challenge 1: Compute Square of a Number

Given a number implement a function to compute its square.

We'll cover the following

Problem Statement

Implement a function that takes a number testVariable and returns the square of the number.

Try using the following mathematical identity to solve this problem. (n−1)2=n2−2n+1(n-1)^2 = n^2 - 2n + 1.

Remember to implement your solution recursively.

Input

A variable testVariable that contains the input number

Output

The square of the input number

Sample Input

5

Sample Output

25

Try it Yourself

Try to attempt this challenge by yourself before moving on to the solution. Good luck!

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def findSquare(targetNumber) :
  # Write your code here
  return None

In the next lesson, we have the solution review of this problem.