Learn Python Factorial Calculation | Python Programming Tutorial #shorts

Welcome to another Python programming tutorial on my channel! In this video, we'll dive into a fundamental concept of mathematics and programming - calculating the factorial of a number. Whether you're a beginner or looking to refresh your Python skills, this tutorial is perfect for you.

We'll start by understanding the problem: What is a factorial and how do we calculate it? I'll explain the recursive approach, breaking down the code step by step. We'll write a Python function that calculates the factorial of any given number. The recursive method allows us to solve this problem in an elegant and efficient way.

//Factorial Calculation in Python//

Function to calculate factorial of a number using recursion
def factorial(n):
//Base case: factorial of 0 is 1//
if n == 0:
return 1
//Recursively calculate factorial for n-1 and multiply with n//
else:
return n * factorial(n-1)

//Example Usage//
//Define a number for which factorial needs to be calculated//
num = 5
//Call the factorial function and print the result//
print("Factorial:", factorial(num))

"In this code, the factorial function calculates the factorial of a number. When the input number is 0, the factorial is 1 (base case). The function uses recursion, meaning it calls itself with smaller inputs until it reaches the base case. This code, when executed with num equal to 5, will calculate the factorial of 5 (5!) and print the result "Factorial: 120".

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