%% %% Ein Beispiel der DANTE-Edition %% %% 1. Auflage %% %% Beispiel 09-07-49 auf Seite 463. %% %% Copyright (C) 2011 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[]{exaarticle} \pagestyle{empty} \setlength\textwidth{166.324pt} \AtBeginDocument{\setlength\parindent{0pt}} \setcounter{equation}{66} \renewcommand\theequation{9.\arabic{equation}} \StartShownPreambleCommands \usepackage{amsmath} \StopShownPreambleCommands \begin{document} \begin{align} \sum_{\substack{1\le i\le p\\ 1\le j\le q\\ 1\le k\le r}% }a_{ij}b_{jk}c_{ki} \end{align} \end{document}