%% 
%%  Der Mathematiksatz mit LaTeX, 1. Auflage 2009
%% 
%%  Example 10-9-3 on page 230.
%% 
%%  Copyright (C) 2009 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.
%% 

\documentclass[]{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{355.65944pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\setcounter{equation}{25}
\renewcommand\theequation{10.\arabic{equation}}
\StartShownPreambleCommands
\usepackage{amsmath,array}
\newcommand*{\diff}{\mathop{}\!\mathrm{d}}
\StopShownPreambleCommands
\begin{document}
\begin{tabular}{|l|p{0.7\linewidth}|}\hline
p-Spalte\,\, & \begin{align} \oint E \diff s=0 \end{align}\\\hline
\end{tabular}\\
\begin{tabular}{|l|b{0.7\linewidth}|}\hline
b-Spalte\,\, & \begin{align} \oint E \diff s=0 \end{align}\\\hline
\end{tabular}\\
\begin{tabular}{|l|m{0.7\linewidth}|}\hline
m-Spalte & \begin{align} \oint E \diff s=0 \end{align}\\\hline
\end{tabular}
\end{document}