What is Iteration ?

Question

Explain in detail please.

Answer 1

"Iteration is the act of repeating a process, either to generate an unbounded sequence of outcomes, or with the aim of approaching a desired goal, target or result. Each repetition of the process is also called an "iteration", and the results of one iteration are used as the starting point for the next iteration."
- Wikipedia, you just need to google

Answer 2

very nice @jnny I especially like the suggestions for Wikipedia and Google

Answer 3

and you should take a look on recursion, too.