Re: [Dev-luatex] Wrong default value for \Umathradicalrule ?

Hi Khaled, 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 the rule." Best wishes, Taco