%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 3-5-3 on page 178.
%%
%% 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{231.0pt}
\addtolength\textwidth{-30pt}
\StartShownPreambleCommands
\usepackage{lineno} \linenumbers
\newcommand\sample{ Some text to
      experiment with line numbering.}
\StopShownPreambleCommands
\begin{document}
No line number before the display:
\[ x \neq y \] \sample \par
But line numbers in this case:
\begin{linenomath}
   \[ x \neq y \]
\end{linenomath}
\sample\par
\end{document}
