I am not new to \XeTeX but new with using formulas. For me it would make sense to display the formulas in monotype (\ttfamily). Does it make sense to do that? How can I do that?
% math.tex
\documentclass{scrreprt}
\usepackage{xltxtra}
\defaultfontfeatures{Mapping=tex-text}
\usepackage{polyglossia}
\setdefaultlanguage[spelling=new]{german}
\usepackage{amsmath}
\begin{document}
text \(-1 \leq r \leq +1\) ist zu ende
\end{document}
verbatimor something from thelistingsormintedpackages. If you are writing "real" maths, I would expect\(-1 \leq r \leq 1\), in that case I would say mono-spaced fonts are unusual nowadays. (I'm not even sure if all symbols are even supported, I suspect that will not be the case with the standard fonts.) – moewe Oct 20 '15 at 15:18