[Dev-luatex] Wrong default value for \Umathradicalrule ?
taco at elvenkind.com
Wed Jun 24 09:39:55 CEST 2009
Khaled Hosny wrote:
> Per LuaTeX manual, \Umathradicalrule is equivalent to OpenType
> RadicalRuleThickness but the comment in page 111 doesn't seem right to
> me; RadicalRuleThickness, from its name, is the thickness radical rule
> and thus it should default to default_rule_thickness as TeX82 does and
The comment is correct. TeX82 does not do what you think it does.
>From the texbook, rule 11 in Appendix G:
"Note that the font designer specifies the thickness of the
[radical] rule by making it the height of the radical character;
the baseline of the character should be precisely at the bottom of
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