Matrix Rotation of elements - Algorithms

[Ángel Martin]

I don't think I said it before but when it comes to this kind of programs I really hate RPN, or more appropriately I hate FOCAL (let's put the blame where it belongs).

Really what in BASIC is a simple and quick affair (see previous post) becomes tricky, sticky and error prone beyond relief using FOCAL - all those sub-indexes and counters - all pitfall-ridden!

Regardless, the routine is done at last - will post it in the program section in a couple of days.