%% 
%%  A DANTE-Edition example
%% 
%%  Beispiel 02-12-1 auf Seite 71.
%% 
%%  Copyright (C) 2010 H. 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.
%% 

%%Run also: >>  << 
% Show page(s) 1

\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{122.59192pt}
\setlength\parindent{0pt}

\usepackage{mdwtab}

\begin{document}
\begin{tabular}{!{\vline[3pt]}l@{\quad}|Mc|}\hlx{hv[1]}
 \multicolumn{2}{!{\vline[3pt]}c|}{%
    Gleichungen}\\\hlx{v[1]hv}
1.& f(x)=\frac{\sqrt{x^2-1}}{x^2+1} \\\hlx{vhv}
2.& f(x)=\frac{\sqrt{x^2-1}}{x^2+\frac{1}{x^2}}\\\hlx{vh}
\tabpause{Jetzt kommen dieselben\\
          Gleichungen noch mal!}\hlx{hv}
3.& f(x)=\frac{\sqrt{x^2-1}}{x^2+1} \\\hlx{vhv}
4.& f(x)=\frac{\sqrt{x^2-1}}{x^2+\frac{1}{x^2}}\\\hlx{vh}
\end{tabular}
\end{document}