\documentclass{article}
\usepackage{axiom}
\begin{document}
\title{\$SPAD/src/input SQMATRIX.input}
\author{The Axiom Team}
\maketitle
\begin{abstract}
\end{abstract}
\eject
\tableofcontents
\eject
<<*>>=

-- Input generated from SquareMatrixXmpPage
)clear all

)set expose add constructor SquareMatrix
m := squareMatrix [[1,-%i],[%i,4]]
m*m - m
mm := squareMatrix [[m, 1], [1-m, m**2]]
p := (x + m)**2
p::SquareMatrix(2, ?)
@
\eject
\begin{thebibliography}{99}
\bibitem{1} nothing
\end{thebibliography}
\end{document}