I asked this question on TeX.SX, but Enrico Gregorio suggested that this is better suited for the XeTeX mailing list. The question has essentially the same content as this e-mail, but features some sample images. You may find it here:
https://tex.stackexchange.com/questions/281549/why-is-the-fraction-off-the-math-axis-in-xetex Now to the problem: The fraction in textstyle is off the math axis in XeTeX when I use a Unicode math font. In LuaTeX, though, it aligns nicely with the math axis. The follwing MWE should illustrate this. Also, in displaystyle everything is fine. \ifdefined\directlua \input luaotfload.sty \fi $-{1\over 2}$% \font\ms="Latin Modern Math:script=math;+ssty=0" at 7pt \scriptfont0=\ms $-{1\over 2}$ \bye How can I fix this? Does it suffice to adjust \fontdimen parameters? This does not only happen in plain XeTeX, but also in LaTeX with the unicode-math package. Unfortunately, I cannot show a side-by-side comparison here, because unicode-math immediately changes the math font to “Latin Modern Math”. \documentclass{standalone} \usepackage{unicode-math} \begin{document} $-\frac{1}{2}$ \end{document} Kind regards, Henri -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex
