Python Day 3: Functions Explained + Build a Number Toolkit

n Day 3, we learn one of the most powerful concepts in Python — Functions — and use them to build a practical Number Toolkit project. What you’ll learn: What functions are Why functions are important How to create your own function How to use return How to pass parameters Build a menu-driven Number Toolkit No theory overload. Pure coding. By the end of this video, you’ll build a reusable mini application using functions.