%% %% Ein Beispiel der DANTE-Edition %% Mathematiksatz mit LaTeX %% 2. Auflage %% %% Beispiel 09-12-4 auf Seite 188. %% %% Copyright (C) 2012 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}{9} \renewcommand\theequation{9.\arabic{equation}} \StartShownPreambleCommands \usepackage{amsmath,empheq,color} \newcommand*\diff{\mathop{}\!\mathrm{d}} \StopShownPreambleCommands \begin{document} \begin{subequations} \begin{align} f(x) & =\int\limits_1^{\infty}\frac{1}{x^1}\diff t=1 \end{align} \begin{empheq}[box={\fboxsep=10pt\colorbox{cyan}}]{align} f(x) & =\int\limits_2^{\infty}\frac{1}{x^2}\diff t=0.25 \end{empheq} \end{subequations} \end{document}