%% 
%%  Example 01-05-1 
%%  Copyright (C) 2017 Herbert Voss
%% 
%% ==== 
% Show page(s) 1
%% 
%% 
\documentclass[]{exaarticle2}
\pagestyle{empty}
\setlength\textwidth{158.31393pt}

%StartShownPreambleCommands

%StopShownPreambleCommands
\begin{document}
$\matrix{
  A & B & C \cr
  d & e & f \cr
  1 & 2 & 3 \cr
}$
\end{document}
