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f(x)=5*cos(1.5*x)*exp(-x/10)
g(x)=5*sin(1.5*x)*exp(-x/10)
set samples 200
unset key
set label "{/Helvetica=18 splot with linespoints}" at sc 0.4,0.9
set xlabel "£Ø¼´" font "IPAGothic,12"
set ylabel "£Ù¼´" font "IPAMincho,12"
set zlabel "£Ú¼´" font "VLGothic,12"
set xrange [0:10]
set yrange [-5:5]
set zrange [-5:5]
set ticslevel 0
set term pngcairo enh font "Times,10" size 480,360
set out "splot_linespoints.png"
splot '+' u 1:(f($1)):(g($1)) w linespoints
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