Introduction to Recursion

Recursion is a powerful problem-solving technique and a fundamental concept in computer science. At its core, recursion occurs when a function (or definition) refers to itself, either directly or indirectly. While it might sound circular or confusing at first, the recursive approach often simplifies complex problems by breaking them down into smaller, more manageable pieces.

What Is Recursion?

Recursion is a method of solving a problem by having a function call itself. Consider a common analogy: standing between two mirrors