>>>>Sure, you can call a function from within that function. How that must be done with the above equation is your endeavour. :)
>>>
>>>Recursion isn't just a function calling a function. It is a function calling a very special function, namely itself.
>>
>>Understood. But isn't that exactly what I said? ...you can call a function from within that function...
>
>Not really, but we might just be splitting hair.
>you can call a function from within that function
>It is not just a function.
>
>I am sure you know exactly what recursion means and all this is just semantics.

I think it would have been semantically incorrect if I had written: you can call the function from within that function. Maybe the native English speakers can comment on this one? :)

>On the lighter side. Here is the definition of recursion.
>Recursion: See recursion.

Isn't that rather the definition of an infinite loop? I hope for Zakaria that his recursive algorithm isn't infinite, because of the stacksize problem. :)