I have this year reported something as a bug to Barbara Beeton (the bug collector for TeX) which I find disturbing: TeX's arithmetic on units truncates and thus is biased. This has the annoying effect that "1in", supposedly representing one inch which is _exactly_ 72.27 points, will in TeX stand for the value "72.26999pt" and be actually smaller than the value "72.27pt". Of course, fixing this might change existing documents. Also we have: **\dimen0=1in entering extended mode *\showthe\dimen0
72.26999pt.
*\showthe\dimexpr100\dimen0\relax
7226.9989pt.
*\dimen0=72.27pt *\showthe\dimen0
72.27pt.
*\showthe\dimexpr100\dimen0\relax
7227.00043pt.
So while "72.27pt" is _quite_ closer to one inch than "1in" is, it is larger. Anyway, is something like that an area that LuaTeX would actually ever consider touching? After all, it would break document compatibility. Which might be, I believe, less of a holy grail for ConTeXt than for LaTeX. Opinions? -- David Kastrup, Kriemhildstr. 15, 44793 Bochum