<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\documentclass{article}
\usepackage{amsmath} % pkg required by EasyLatex
\usepackage{amsfonts} % pkg required by EasyLatex
\usepackage{amssymb} % pkg required by EasyLatex
\usepackage{psfrag} % pkg required by EasyLatex
\usepackage[dvips]{graphicx} % pkg required by EasyLatex

\begin{document}


\begin{align*}
\left[ \begin{array}{lll}
   1 &amp; 0 &amp; 0
\\ 0 &amp; 1 &amp; 0
\\ 0 &amp; 0 &amp; 1
\end{array} \right]
\end{align*}


\end{document}
</pre></body></html>