\title	{Traza 2x2}
\author	{XIAO Gang}
\email	{xiao@unice.fr}
\format	{html}
\computeanswer{yes}

\matrix{A=slib(matrix/random 2,2,20)}
\integer{tr=pari(trace([\A]))}

\statement{¿Cuál es la traza de la matriz
<p><center>
 \(A = [\A]) ?
</center><p>
}

\answer{Traza(A)}{\tr}{type=number}