--Originally published at Just A Turtle Coding.
So a recursion function is when a function is called inside the same function. Using them can reduce your code from 100 lines to maybe a 20-line code.
Something that’s recursive in its own definition is a factorial function. When using recursion functions, it’s really easy to program a factorial.
You can learn more from this topic in: http://stackoverflow.com/questions/4502429/recursive-factorial-function
