%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 8-3-2 on page 486.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% 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{135.0pt}

\StartShownPreambleCommands
\usepackage{amsmath}
\StopShownPreambleCommands
\begin{document}
\begin{gather*}
  \begin{matrix}  0 &  1 \\ 1 &  0 \end{matrix}  \quad
  \begin{pmatrix} 0 & -i \\ i &  0 \end{pmatrix} \\
  \begin{bmatrix} 0 & -1 \\ 1 &  0 \end{bmatrix} \quad
  \begin{Bmatrix} 1 &  0 \\ 0 & -1 \end{Bmatrix} \\
  \begin{vmatrix} a &  b \\ c &  d \end{vmatrix} \quad
  \begin{Vmatrix} i &  0 \\ 0 & -i \end{Vmatrix}
\end{gather*}
\end{document}