%% 
%%  An UIT Edition example
%% 
%%  Example 08-03-2 on page 161.
%% 
%%  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}
$a\abovewithdelims()0pt b$  \medskip

\def\fdelimA{\abovewithdelims\{)1.0pt}
${a\fdelimA b}$             \medskip

\def\fdelimB{\abovewithdelims[]2.0pt}
${a\fdelimB b}$             \medskip

\def\fdelimC{\abovewithdelims\{.0pt}
$\displaystyle{a\fdelimC b}$
\end{document}
