%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 8-6-6 on page 580.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  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{348.0pt}

\StartShownPreambleCommands
\usepackage[physics]{circ}
\usepackage{array}
\StopShownPreambleCommands
\begin{document}
\providecommand{\Lcs}[1]{\mbox{\normalfont\ttfamily\char'134#1}}
\setlength{\extrarowheight}{3mm}
\begin{tabular}{cccccc}
\begin{circuit}0 \spring{n} {} l \end{circuit} &
\begin{circuit}0 \dmass{n} {} l \end{circuit} &
\begin{circuit}0 \fdmass{n} {} l \end{circuit} &
\begin{circuit}0 \wall{n} {\,} | u \end{circuit} &
\begin{circuit}0 \spinu{n} {} l \end{circuit} &
\begin{circuit}0 \spind{n} {} l \end{circuit} \\
\Lcs{spring} & \Lcs{dmass} & \Lcs{fdmass} & \Lcs{wall} & \Lcs{spinu} & \Lcs{spind} \\
spring & \multicolumn{2}{c}{mass with two forces} & wall & spin up & spin down
\end{tabular}
\end{document}