> It would be passed along. It would be useful EVEN if it weren't updated by arithmetic with other such numbers. It would be useful if you could then pass it t

> It would be passed along. It would be useful EVEN if it weren't updated by arithmetic with other such numbers. It would be useful if you could then pass it to an "about equal" operator, too. I don't need to know that the alternator is putting out 13.928528V, and sure as hell I know you're not measuring that accurately. It's precise but wrong. I want an "about equals" thing so I can say "if Valt == 14 alt_ok=true" kind of thing but tag it to be "about 14" not "exactly 14".