> There are examples about this in
> http://www.telefonica.net/web2/biomates/maxima/gpdraw/
>
That is a nice and useful interface to gnuplot, but i see that
you set the x range explicitly in your examples.
I would like to enter the command
plot2d(x/(x^2-4));
to display a plot, say, in the xrange [-3,3] and yrange [-6,6]
(that is in the range needed to get the main pattern of the function,
where relative changes are over a threshold - the first derivative
could help to assess such range)
and two vertical dotted lines at x=+2 x=-2.
How it that possible using draw2d?
I have loaded your draw.lisp in maxima (version 5.10) but it fails o
execute your example command (see below).
Probably i should upgrade my maxima program
thank you for you help
--
Pol
---- enc
(%i8) draw2d(explicit(u^2,u,-3,3))$
Maxima encountered a Lisp error:
Error in COND [or a callee]: The function CHECK-GNUPLOT-PROCESS is
undefined.
Automatically continuing.
To reenable the Lisp debugger set *debugger-hook* to nil.
---