ELI5: Explain Like I'm 5

Nelder–Mead method

The Nelder–Mead method is a mathematical way of solving problems that involve searching for the best answer from many different options. It works by rearranging the options and seeing which one is the best. It starts with a set of options and creates a new set by using each of the old options as a starting point and trying different changes to see which is the best. It continues like this until it finds the best option that it can.