# set terminal png transparent nocrop enhanced font arial 8 size 420,320 # set output 'simple.1.png' set key left top Right noreverse noinvert enhanced box linetype -1 linewidth 1.000 samplen 4 spacing 1 width 0 height 0 autotitles set samples 50, 50 plot [-10:10] sin(x),atan(x),cos(atan(x))