# [XeTeX] math font problem with beamer

Horst Hohberger horst.hohberger at gmail.com
Wed Sep 7 16:56:01 CEST 2011

Since updating to MacTeX 2011, I have a font kerning problem when using xelatex with beamer and the fontspec package; the spacing in mathematical formulas is off, so letters collide with parentheses and text decorations.

Here is a minimal example:

---------
%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode

\documentclass{beamer}

\usepackage[no-math]{fontspec}
\usepackage{xunicode}
\usepackage{xltxtra}

\begin{document}

\begin{frame}
$f(x)$ and $y'$
\end{frame}

\end{document}
---------

When the three \usepackage commands are commented out, the spacing is fine; with the three packages, the f runs into the left parenthesis and the prime touches the letter y.

Am I missing some option when calling the packages? Any help is appreciated!

Horst

- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Dr. Horst Hohberger

Lecturer for Mathematics

University of Michigan - Shanghai Jiaotong University Joint Institute

Phone: +86 134 828 97 417
Web: http://umji.sjtu.edu.cn/personal/horst/

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