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

%StartShownPreambleCommands

%StopShownPreambleCommands
\begin{document}
$a\above0pt b$\\[8pt]
${a\above1pt b}$\\[8pt]
${a\above2.5pt b}$\\[8pt]
$\displaystyle{a\above0pt b}$
\end{document}
