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I would like to use the math mode without writing special orders for using umlauts. I'm using LuaLatex and babel.

What would be needed for a nice umlaut support? I do know how to work without out it. 

\documentclass{article} \usepackage[utf8]{luainputenc} \usepackage[ngerman]{babel} \usepackage{fontspec} \begin{document} It would be nice to write just: $Höhe > 1$ instead of: $H\ddot{o}he > 1$ textnormal and texit are getting the best output $\textnormal{\textit{Höhe}} > 1$ \end{document}

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  • i'm not a lualatex user, but whatever the tex engine, this looks like a word, and should thus be treated as one, not as a string of separate letters representing variables -- the spacing is not appropriate for a word. Commented Aug 10, 2016 at 17:03

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The input Höhe is wrong: in math letters are single entities, they don't build words and so Höhe is the same as H ö h e, a product of 4 variables.

Using \mathit or \textnormal\textit as you did in your example is a good solution. If you have lot of such words I would suggest to define a semantic command:

\documentclass{article} \usepackage[ngerman]{babel} \usepackage{fontspec} \newcommand\mathword[1]{\textnormal{\textit{#1}}} \begin{document} $\mathit{Höhe} > 1$ $\textnormal{\textit{Höhe}} > 1$ $\mathword{Höhe} > 1$ \end{document}

When using unicode-math you will have to remap \mathit as the default definition don't support umlauts:

\documentclass{article} \usepackage[ngerman]{babel} \usepackage{fontspec} \usepackage{unicode-math} \setmathfontface\mathit{lmroman10italic} \newcommand\mathword[1]{\textnormal{\textit{#1}}} \begin{document} $\mathit{Höhe} > 1$ $\textnormal{\textit{Höhe}} > 1$ $\mathword{Höhe} > 1$ \end{document}

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  • Is surrounding \textit with \textnormal necessary? \textit by itself would appear to suffice. Commented Aug 10, 2016 at 18:50
  • @Mico add \bfseries to see the difference. Commented Aug 10, 2016 at 18:55
  • The input Höhe is wrong: in math letters are single entities, they don't build words and so Höhe is the same as H ö h e, a product of 4 variables. Thank you very much! That makes everything crystal clear. My fault, I haven't thought about it! Commented Aug 11, 2016 at 13:16
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\documentclass{article} \usepackage{amsmath} \usepackage[ngerman]{babel} \usepackage{fontspec} \newcommand\textIT[1]{\text{\itshape#1}} \begin{document} It would be nice to write just: $\textIT{Höhe}^\textIT{Höhe} > 1$ \end{document}

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By the way: Why do you use luainputenc? UTF8 is the default input encoding.

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