%% %% Der LaTeX-Begleiter, zweite Auflage (September 2005) %% %% Beispiel 8-2-30 von Seite 497. %% %% Copyright (C) 2005 Frank Mittelbach, Michel Goossens, %% Johannes Braams, David Carlisle, and Chris Rowley %% %% Uebersetzung: Copyright (C) 2005 Claudia Krysztofiak, %% Rebecca Stiels und Frank Mittelbach %% %% 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{lb2examargin} \pagestyle{empty} \setcounter{page}{6} \setlength\textwidth{113.4372pt} \StartShownPreambleCommands \usepackage{amsmath} \StopShownPreambleCommands \begin{document} \begin{subequations} \label{eq:1} \begin{align} f &= g \label{eq:1A} \\ f' &= g' \label{eq:1B} \\ \mathcal{L}f &= \mathcal{L}g \label{eq:1C} \end{align} \end{subequations} \begin{subequations} \label{eq:2} \renewcommand\theequation{\theparentequation\roman{equation}} \begin{align} f &= g \label{eq:2A} \\ f' &= g' \label{eq:2B} \\ \mathcal{L}f &= \mathcal{L}g + K \label{eq:2C} \end{align} \end{subequations} Man beachte die Beziehung zwischen~\eqref{eq:1} und~\eqref{eq:2}: nur~\ref{eq:1C} und~\ref{eq:2C} sind verschieden. \end{document}