# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 # set output 'margins.1.png' unset key set style increment default set view map scale 1 set samples 50, 50 set isosamples 50, 50 set style data lines unset ytics set urange [ -15.0000 : 15.0000 ] noreverse nowriteback set vrange [ -15.0000 : 15.0000 ] noreverse nowriteback set xrange [ -15.0000 : 15.0000 ] noreverse writeback set x2range [ * : * ] noreverse writeback set yrange [ * : * ] noreverse writeback set y2range [ * : * ] noreverse writeback set zrange [ -0.250000 : 1.00000 ] noreverse nowriteback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback set lmargin at screen 0.2 set bmargin at screen 0.1 set rmargin at screen 0.85 set tmargin at screen 0.25 f(h) = sin(sqrt(h**2))/sqrt(h**2) y = 0 plot sin(sqrt(x**2+y**2))/sqrt(x**2+y**2)