%% 
%%  An UIT Edition example
%% 
%%  Example 06-11-2 on page 104.
%% 
%%  Copyright (C) 2010 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.
%% 
%% 
%% ==== 
% Show page(s) 1
%% 
\documentclass[]{exareport}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\AtBeginDocument{\setlength\parindent{0pt}
\setcounter{equation}{51}
\setcounter{chapter}{6}\setcounter{section}{11}}
\StartShownPreambleCommands
\usepackage{amsmath}
\StopShownPreambleCommands
\begin{document}
\begin{flalign} z &= f(x,y) \end{flalign} \numberwithin{equation}{section}
\begin{align}\bordermatrix{%
   & c & o & l & u & m & n \cr
 l & 1 & 0 & 0 & 0 & \cos \phi & \sin\phi\cr
 i & 0 & 1 & 0 & 0 & -\sin\phi & \cos\phi\cr
 n & 0 & 0 & 1 & 0 &     0     &     0   \cr
 e & 0 & 0 & 0 & 1 &     0     &     0   \cr} \end{align}
\renewcommand\theequation{\arabic{equation}} \begin{flalign} y &= f(x) \end{flalign}
\end{document}