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%%  An UIT Edition example
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%%  Example 04-09-2 on page 56.
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%%  Copyright (C) 2010 Herbert Voss
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%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
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%%  See http://www.latex-project.org/lppl.txt for details.
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\usepackage[utf8]{inputenc}
\AtBeginDocument{\setlength\parindent{0pt}}
\usepackage{microtype}
\usepackage[english]{babel}
\StartShownPreambleCommands

\StopShownPreambleCommands
\begin{document}
Within a line this can be suboptimal because of the larger line
spacing that is created to make space for the fraction --- $\displaystyle\frac{a}{b}$.
Within a line this can be suboptimal because of the larger line
spacing that is created to make space for the fraction. It just does not look good
and it is much better to use the \texttt{\textbackslash textstyle} variant.
\end{document}
