Functions

A function is like a machine that takes an input, processes it according to specific rules, and produces an output. Think of it as a black box: you put something in, it performs a calculation or action, and then gives back a result. Functions are used in math, programming, and many areas to organize code, solve problems, and model real-world processes. They help break down complex tasks into manageable parts, making systems easier to understand, develop, and maintain.