Is it still recursion?

Question

What if two functions call each other over and over... Is it still recursion? What can it be used for?

Answer 1

I only know recursion function means a function that calls itself rather than calling another. Probably circular dependency, function A needs function B, and so does the other way around. Without the pair either one can work. Your sub question is vague as you asked "What can it be used for?", did you mean recursion function, or functions that calls each other?

Answer 2

Yes, it's called indirect or mutual recursion. You can find details with example here:
https://en.m.wikipedia.org/wiki/Mutual_recursion

Answer 3

Check this post how actually recursion work.
https://www.sololearn.com/discuss/1149517/?ref=app