gnuplotのページ

 gnuplot> set hidden3d
 gnuplot> set isosample 40
 gnuplot> set view 15,30
 gnuplot> splot sin(x*y)
 gnuplot> set terminal png
 Terminal type set to 'png'
 Options are 'small color picsize 640 480 '
 gnuplot> set output "gnuplot.png"
 gnuplot> replot