> I don't understand why 'i' has been given a pass. Because it is well enough established (in both programming and mathematics) that it communicates literally

> I don't understand why 'i' has been given a pass. Because it is well enough established (in both programming and mathematics) that it communicates literally no less information to the reader than "iterator" or "index" would in the same context. > The argument boils down to saved keystrokes. Not at all. I, for one, find it easier to see the shape of the whole expression when the variable names are shorter.