%@P:maxima1 %@M: \maxima{} peut tracer des surfaces (via \texttt{gnuplot}). \begin{maxin} \begin{verbatim} > plot3d(x^2-y^2,[x,-2,2],[y,-2,2],[grid,12,12]); \end{verbatim} \end{maxin} \maxplot{plotb01.pdf} \begin{maxin} \begin{verbatim} > plot3d(x^2-y^2,[x,-2,2],[y,-2,2],[grid,12,12],[gnuplot_pm3d,true]); \end{verbatim} \end{maxin} \maxplot{plotb02.pdf}