f(x) = 5*besj1(x)*exp(-x/5) set samples 20 set xrange [0:10] set yrange [-1:2.5] unset key set term pngcairo enh font "Times, 10" size 480,360 set out "plot_labels.png" set label "plot with labels" at sc 0.4, 0.85 font "Helvetica,18" set xlabel "£Ø¼´ IPA¥´¥·¥Ã¥¯" font "IPAGothic,12" set ylabel "£Ù¼´ IPAÌÀÄ«" font "IPAMincho,12" plot '+' u 1:(f($1)):("{/Symbol=16 \247}") w labels tc rgb "dark-green" |