Functions Unleashed: Reusable Code Blocks in Python

Defining Functions
Functions group related logic into reusable blocks. They make code cleaner and easier to maintain.

def greet(name):
    print("Hello,", name)

Returning Values
Functions can return results, allowing you to use their output elsewhere in your program.

def add(a, b):
    return a + b

Default Parameters
Default parameters provide fallback values, making functions flexible and user‑friendly.

def say_hi(person="friend"):
    print("Hi", person)

Multiple Return Values
Functions can return more than one value at a time, which is useful for calculations like finding both the minimum and maximum of a list.

def min_max(values):
    return min(values), max(values)

My take
Functions organize code into reusable blocks. They support returning values, default parameters, and multiple outputs, making programs cleaner and more modular.