%% 
%%  An UIT Edition example
%% 
%%  Example 08-01-15 on page 154.
%% 
%%  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
%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{177.70511pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\StartShownPreambleCommands

\StopShownPreambleCommands
\begin{document}
$\sqrt 2 x$ --- $\sqrt 2\,x$     \\[6pt]
$\sqrt{\log x}$ --- $\sqrt{\,\log x}$\\[6pt]
$P\left({1/\sqrt n}\right)$ ---
$P\left({1/ \sqrt n}\,\right)$  \\[10pt]
 $[0,1)$ --- $[\,0,1)$           \\[6pt]
$x^2/2$ --- $x^2\!/2$
\end{document}