%%
%% A DANTE-Edition example
%%
%% Example 02-12-1 on page 73.
%%
%% 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[]{article}
\pagestyle{empty}
\setlength\textwidth{129.70511pt}
\setlength\parindent{0pt}
\usepackage{mdwtab}
\begin{document}
\begin{tabular}{!{\vline[3pt]}l@{\quad}|Mc|}\hlx{shv[1,2]}
& equations\\\hlx{v[1][10pt]hv[][5pt]}
1st& f(x)=\frac{\sqrt{x^2-1}}{x^2+1} \\\hlx{vhv}
2nd& f(x)=\frac{\sqrt{x^2-1}}{x^2+\frac{1}{x^2}}\\\hlx{vh}
\tabpause{Now the same equations\\
again!}\hlx{hv}
3rd& f(x)=\frac{\sqrt{x^2-1}}{x^2+1} \\\hlx{vhv}
4th& f(x)=\frac{\sqrt{x^2-1}}{x^2+\frac{1}{x^2}}\\\hlx{vh}
\end{tabular}
\end{document}