Video Summary

Recursion is a method of solving a problem by breaking it down into smaller and smaller subproblems until they reach a base case that can be solved directly. The solution to the original problem is then found by combining the solutions to the subproblems. For example, to find the factorial of a number n, you can start by recursively calling the factorial function with n-1. The base case is when n is 0, in which case the factorial is 1. The solution to the original problem is then n * factorial(n-1). Recursion can be a powerful tool for solving problems, but it can also be difficult to understand and implement. It is important to be careful when using recursion to avoid infinite loops.