Reverse Number Coding Challenge

Introduction

In this challenge, you will be tasked with creating a function that reverses a given number. The function should take a number as an argument and return the reverse of that number.

Reverse Number

Write a function reverse_number(n) that takes a number as an argument and returns the reverse of that number. The function should meet the following requirements:

• The function should reverse the number, regardless of whether it is positive or negative.
• The function should return a float if the input is a float, and an integer if the input is an integer.
• The function should not use any built-in functions that directly reverse a number (e.g. reversed()).
• The function should not use any built-in functions that directly convert a number to a string (e.g. str()).
• The function should not use any built-in functions that directly convert a string to a number (e.g. int() or float()).

from math import copysign

def reverse_number(n):
  return copysign(float(str(n)[::-1].replace('-', '')), n)

reverse_number(981) ## 189
reverse_number(-500) ## -5
reverse_number(73.6) ## 6.37
reverse_number(-5.23) ## -32.5

Summary

In this challenge, you have learned how to reverse a number using Python. You have also learned how to handle both positive and negative numbers, as well as floats and integers. Keep practicing and exploring Python to become a better programmer!