# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 # set output 'fillcrvs.2.png' set key outside right top vertical Right noreverse enhanced autotitle nobox set style increment default set title "Intersection of two parabolas" set xrange [ * : * ] noreverse writeback set x2range [ * : * ] noreverse writeback set yrange [ * : * ] noreverse writeback set y2range [ * : * ] noreverse writeback set zrange [ * : * ] noreverse writeback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback plot x*x with filledcurves, 50-x*x with filledcurves, x*x with line lt 1