%% 
%%  Ein Beispiel der DANTE-Edition
%%  Mathematiksatz mit LaTeX
%%  3. Auflage
%%  Beispiel 10-09-4 auf Seite 230.
%%  Copyright (C) 2018 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.
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\documentclass[10pt]{screxa}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\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}