%% 
%%  Der Mathematiksatz mit LaTeX, 1. Auflage 2009
%% 
%%  Example 4-18-10 on page 70.
%% 
%%  Copyright (C) 2009 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.
%% 

\documentclass[]{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{170.59192pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\usepackage[lucidasmallscale,expert]{lucidabr}
\StartShownPreambleCommands

\StopShownPreambleCommands
\begin{document}
\section{Funktion $f(x)=x^2$}
\begin{description}
\item[Dies ist $y=f(x)$] nur eine Demonstration.
\item[Und $z=f(x,y)$] noch eine Demonstration.
\end{description}
\end{document}