<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%%
%% Der LaTeX-Begleiter, zweite Auflage (September 2005)
%%
%% Beispiel 8-5-3 von Seite 510.
%%
%% 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{lb2exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{173.4372pt}

\StartShownPreambleCommands
\usepackage{amsmath}
\StopShownPreambleCommands
\begin{document}
\begin{align*}
\widehat        {\psi_\delta(t) E_t h}
&amp;= \widetilde   {\psi_\delta(t) E_t h}     \\
\overline       {\psi_\delta(t) E_t h}
&amp;= \underline   {\psi_\delta(t) E_t h}     \\
\intertext{Ändern sich nicht bei Stilwechsel:}
\overbrace      {\psi_\delta(t) E_t h}
&amp;= \underbrace  {\psi_\delta(t) E_t h}     \\
\intertext{Benötigen \textsf{amsmath} für
                                 Stilwechsel:}
\overrightarrow {\psi_\delta(t) E_t h}
&amp;= \overleftarrow {\psi_\delta(t) E_t h}   \\
\intertext{Benötigen \textsf{amsmath}:}
\underrightarrow  {\psi_\delta(t) E_t h}
&amp;= \underleftarrow  {\psi_\delta(t) E_t h} \\
\overleftrightarrow {\psi_\delta(t) E_t h}
&amp;=\underleftrightarrow{\psi_\delta(t) E_t h}
\end{align*}
\end{document}
</pre></body></html>