Hello Fabrizio,
> She has installed gnuplot (maybe from the Mandrake CD)
> but plot2d is not working
> the way it should: she says she can't plot
> the topology of curves with my library (SARAG),
> which uses "plot2d" (with the new features available since 5.9.2).
>
> Which version of gnuplot does she have
> to install in order to use Maxima 5.9.2 and 5.9.3 version
> of the plot2d command ? (plot2d in 5.9.1 had fewer commands)
To the best of my knowledge, the gnuplot features used by plot2d
haven't changed over the last few releases, so I suspect
the gnuplot version matters very much.
It's hard to tell what might be wrong here.
Does plot2d (x^2, [x, -1, 1]); make a picture successfully?
Does gnuplot work from the command line (not through Maxima) ?
It looks like the SARAG package uses gnuplot-specific
features. After set_plot_option ([plot_format, openmath]);
drawTopology fails with an error message.
Sorry I can't be more helpful,
Robert Dodier