[Maxima-discuss] draw and multiplot error

[nijso b. <ni...@ho...>]

I try the example for multiplot from the online maxima manual, and it
gives me an error message. I have to interrupt with ctrl-g to go back
to the maxima prompt. I can then continue and the plot is correct. Here
is what I do http://maxima.sourceforge.net/docs/manual/maxima_52.html:

load("draw");
set_draw_dset_draw_defaults(
         xrange = [-1,1],
         yrange = [-1,1],
         grid   = true,
         title  = "Step by step plot" )$
multiplot_mode(screen)$
draw2d(color=blue,  explicit(x^2,x,-1,1))$

multiplot> unset output
                       ^
           "/tmp/maxout15863.gnuplot", line 36: you can't change the
output in multiplot mode

the gnuplot file generated:

if(GPVAL_VERSION >= 5.0){set for [i=1:8] linetype i dashtype i; set
format '%h'}
set zero 0.0
set size 1.0, 1.0
set origin 0.0, 0.0
set size noratio
set xrange [-1.0:1.0]
set yrange [-1.0:1.0]
set cbrange [*:*]
unset logscale x
unset logscale x2
unset logscale y
unset logscale y2
unset logscale cb
set grid xtics ytics mxtics mytics
set mxtics 1
set mytics 1
set title 'Step by step plot'
set xlabel ''
set x2label ''
set ylabel ''
set y2label ''
set border 15
set key top right
unset xzeroaxis
unset yzeroaxis
unset x2tics
set xtics nomirror
set xtics norotate border autofreq
unset y2tics
set ytics nomirror
set ytics norotate border autofreq
set cbtics autofreq
set colorbox
set cblabel ''
set palette rgbformulae 7,5,15
plot '/tmp/data20834.gnuplot' index 0 t '' w l lw 1 lt 1 lc rgb
'#FF0000' axis x1y1
unset output



This is for gnuplot 5.2, patchlevel 4, and maxima 5.41.0. 
I thought I had this working before, and I think in the meantime I've
updated my gnuplot version, so this might be the problem.

Can somebody confirm that this is working or not working for your
version?

Best,
Nijso