%% 
%%  An UIT Edition example
%% 
%%  Example 09-02-1 on page 168.
%% 
%%  Copyright (C) 2010 Herbert Voss
%% 
%%  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.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\usepackage[utf8]{inputenc}
\AtBeginDocument{\setlength\parindent{0pt}}
\usepackage[scaled=0.8]{luximono}
\StartShownPreambleCommands
\usepackage{alltt}
\StopShownPreambleCommands
\begin{document}
\begin{alltt}
Similar to verbatim, but \textbf{commands} are \emph{executed}.
Some special characters --- # $ % ^ & ~ _; can be input without backslash.
And a math expression --- \( \sqrt{a^2+b^2} \). It \emph{must} be enclosed in
\verb+\(+ ... \verb+\)+ for inline mode, the usual $ ... $ method does not work
here.
\end{alltt}
\end{document}