Taco Hoekwater

David Kastrup wrote:

But I consider it more likely that nc should be changed to 1370:107

And also, I applied this change to luatex.web (and fixed the documentation sting back). TeX's conversions are approximations anyway, I see little point in changing the conversion arithmetic.

Well, but I would find a change rendering "1in"="72.27pt" attractive. I'll propose one shortly. Anyway, those fractions carry _way_ more precision than TeX's general arithmetic anyway, and TeX's truncation (which this was all about in the first place) introduces more bias than this particular fraction does. One could argue that 32163:2512 will be a nicer fraction since it overshoots, and TeX forgets to round the final result, so we err on different sides. But I'd rather have the closest ratio and fix TeX's, excuse me (hopefully Knuth didn't hear), LuaTeX's arithmetic on units by letting it round properly. -- David Kastrup