%% 
%%  Example 03-03-2 
%%  Copyright (C) 2016 Herbert Voss
%% 
%% ==== 
% Show page(s) 1
%% 
%% 
\documentclass[]{screxa}
\pagestyle{empty}
\setlength\textwidth{134.31393pt}

%StartShownPreambleCommands

%StopShownPreambleCommands
\begin{document}
\def\fdelimA{\abovewithdelims\{)1.0pt}
\def\fdelimB{\abovewithdelims[]2.0pt}
\def\fdelimC{\abovewithdelims\{.0pt}
$a\abovewithdelims()0pt b$\\[8pt]
${a\fdelimA b}$           \\[8pt]
${a\fdelimB b}$           \\[8pt]
$\displaystyle{a\fdelimC b}$
\end{document}
