Recursion
From Wikipedia, a free encyclopedia written in simple English for easy reading.

A visual form of recursion is the Droste effect. It leads to self-similar images.
Recursion is a word from mathematics. In mathematics and in computer science, it is used to define a thing, usually a function. Unlike with normal definitions, the function to be defined can be used to define it.
Recursion consists of two steps:
- A base hypothesis, to start with
- One or more rules to break down the base hypothesis into simpler cases.
An exmple might be how to define ancestor, using recursion:
- A person's parents are his or her ancestors (base hypothesis)
- The ancestors of a person's ancestors are also ancestors of the person being considered (recursion step).
This short article needs someone to make it better.
You can help Wikipedia by adding to it.