Tent map

A tent map is a type of mathematical function used to show how a simple set of rules can give rise to complicated and unpredictable behavior. It works by taking a number between 0 and 1 and transforming it into another number in the same range following these simple rules:

1. If the number is less than 0.5, multiply it by two.
2. If the number is greater than 0.5, divide it by two.

So if you start with the number 0.2, it would be multiplied by two, giving you 0.4. If instead you start with the number 0.9, it is divided by two, giving you 0.45. If you repeat the process with your resulting number each time, eventually you can get extremely complicated and unpredictable behavior.