Hi all,
does anyone know how to make a smooth surface makt it look likes
http://commons.wikimedia.org/wiki/File:Exponential_Function_(Real_Part).png?
I tried but the color boundary is not smooth, if set up the zrange between
-12 and 12, or -18 and 18
reset
set title "complex number = real(exp(x+y*{0,1}))"
set timefmt "%H:%M"
set style fill solid 1
set xrange [-3:3]
set yrange [-2.1*pi:2.1*pi]
set zrange [-20:20]
set ticslevel 0
set xlabel "X"
set ylabel "Y"
set zlabel "Z"
set contour base
set cntrparam levels incr -10,2,10
set pm3d
set palette rgbformulae 25,3,9
set isosamples 40
set hidden3d;
show xzeroaxis
set xzeroaxis
unset hidden3d
replot
splot real(exp(x+y*{0,1})) with lines lc rgb variable linewidth 1
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