Hi all
I've got a problem when I try to plot a list
[[x1,y1],[x2,y2],...............] (obtained thanks to maxima) with gnuplot,
when there's more than 5000points to plot the waiting time on my computer
(sempron 3ghz, 512ram, xp sp2) is about 20 minutes and when I try with
openplot I wait about 1sec but the points I want to plot are linked by a
line even if I execute:
openplot_curves([["{plotpoints 1} {pointsize 1} {no lines}"],aplotter]);
where aplotter contains the datas to be plotted.
Does anyone knows how to prevent openplot from drawing a line or why gnuplo=
t
is so long?
Thanks a lot
Bye
Aurélien
PS: the code used to generate aplotter is the following if it can help
debut:-10;
fin:10;
nb_pts:1000;
eqn_temp(t):=3D4+(t-2)*x+(t^3-8)*x^2+(t^2-t+4)*x^3;
f(x):=3D[realpart(ev(rhs(x),numer)),imagpart(ev(rhs(x),numer))];
pas:(fin-debut)/nb_pts;eqn(t):=3Deqn_temp(debut+pas*t);
equations:makelist(eqn(t),t,0,nb_pts);
resul:map(allroots,equations);
resultats:append(resul[1],resul[2]);
for i:3 thru nb_pts+1 do resultats:append(resultats,resul[i])$
aplotter:map(f,resultats);
openplot_curves([["{plotpoints 1} {pointsize 1} {no lines}"],aplotter]);
**