Very nice. Not only have multiple people edited this page for half a year without noticing that all the code is for the wrong calculator model (which, incidentally, is the main reason the routine exists, since writing a fast routine for the purpose on 68k calculators is non-intuitive), but the final TI-83+ code they've come up with crashes on the third line. :-P
To prevent confusion between the different calculator models, any chance someone could whip up a different color scheme for the 68k namespace? Something subtle, just to make people realize they've wandered over onto the wrong part of the site. I'd do it myself, but I don't have a clue how.