<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">%% 
%%  An UIT Edition example
%% 
%%  Example 04-10-2 on page 58.
%% 
%%  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[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{201.70511pt}
\AtBeginDocument{\setlength\parindent{0pt}}
\StartShownPreambleCommands
\usepackage{graphicx}
\StopShownPreambleCommands
\begin{document}
\[
\Delta = \| a_{ik} \| = \left|
\begin{array}{ccccc}
 a_{11} &amp;a_{12} &amp;a_{13} &amp;\cdots &amp;a_{1n}\\
 a_{21} &amp;a_{22} &amp;a_{23} &amp;\cdots &amp;a_{2n}\\
 \vdots &amp;\vdots &amp;\vdots &amp;\ddots &amp;\vdots\\
 a_{n1} &amp;a_{n2} &amp;a_{n3} &amp;\cdots &amp;a_{nn}
\end{array} \right|
\]
\end{document}
</pre></body></html>