In a message dated 5/18/05 12:51:05 AM, taco@elvenkind.com writes:

Not this one, apparently (pdftex already outputs stroked lines).

Interesting. I'd not noticed that. There's some interesting discussion of it in comp.text.tex ~1999, w/ one of the observations being that using stroked lines improves 300dpi output.

FWIW, if one turns on ``Smooth line art'' in Adobe Acrobat 5 (probably 6 and 7 too) there's not that much difference in the appearance of the rendering of the square root rule / character in Hans' example file (which is hinted at in the afore-mentioned discussion, and noted by Hans in a post on the ConTeXt list as making this matter worth re-examination). At some magnifications things are about identical, at others one gets a double-pixel medium grey line, and the other gets a single-pixel dark grey line. Hopefully at some point in time we'll just get high-resolution displays everywhere and this sort of thing will cease to be an issue.

Isn't there a Unicode slot for fraction bar (I know the Mac encoding has a slot for fraction slash)?

How is this handled in the soon-to-be-released stix fonts? (http://www.stixfonts.org)

William