2

I am trying to use \overset to get the following output:

enter image description here

But what I get with my code

 $ (\overset{\Xi}{F^{-1}})_{\widetilde{D}}^{D}$

enter image description here

I would like to have \Xi alligned right over the F.

1
  • Welcome to TeX.SE.
    – Mico
    Jun 17 at 5:02
2

I believe you need to make four changes.

  • Most importantly, change

    \overset{\Xi}{F^{-1}}
    

    to

    \overset{\Xi}{F}^{-1}
    

    Put differently, the second argument of \overset has to be F, not F^{-1}.

  • Insert an empty math atom between \overset{\Xi}{F} and ^{-1}, as otherwise the inverse-symbol will be placed much too high.

  • (Optional) Change \Xi to \scriptscriptstyle\Xi to reduce the size of \Xi. (The default math style for the first argument of \overset is \scriptstyle; \scriptscriptstyle makes for a 30% linear reduction.)

  • Surround (\overset{\scriptscriptstyle\Xi}{F}{}^{-1})^{D} with curly braces and follow it with _{\widetilde{D}} in order to get the desired horizontal offset of the superscript and subscript terms. Optionally, change _{\widetilde{D}} to _{\!\widetilde{D}} to reduce the horizontal separation a bit.

enter image description here

\documentclass{article}
\usepackage{amsmath} % for \overset macro
\begin{document}
$(\overset{\Xi}{F^{-1}})_{\widetilde{D}}^{D}$ vs.\
${(\overset{\scriptscriptstyle\,\Xi}{F}{}^{-1})^{D}}_{\!\widetilde{D}}$
\end{document}

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