Python Functions & Math Module Programs

This repository contains two Python scripts developed as part of Module 4: Functions & Modules in Python.

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Task 1: Factorial Calculation Using a Function

File: task1_factorial.py

This script defines a recursive function factorial(number) that calculates the factorial of a given non-negative integer.

• Handles negative inputs by returning an error message.
• Uses recursion with a base case of factorial(0) = 1.
• Prints the factorial of a sample number (e.g., 5).

Example output: The factorial of 5 is: 120

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Task 2: Math Module Calculations

File: task2_math_module.py

This script:

• Takes a number input from the user.
• Validates the input to ensure the square root and natural logarithm can be calculated.
• Calculates and displays:
  • Square root of the number
  • Natural logarithm (base e) of the number
  • Sine of the number (in radians)

Example interaction: Enter the number: 25 Square root of 25.0 is: 5.0 Natural logarithm of 25.0 is: 3.2188758248682006 Sine of 25.0 radians is: -0.13235175009777303