# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'igamma.2.png'
set border -1 front lt black linewidth 1.000 dashtype solid
set view 46, 16, 1, 1
set samples 201, 201
set isosamples 201, 201
set style data lines
set xyplane relative 0
set title "igamma domain and convergence improved in version 6" 
set xlabel "a" 
set xrange [ 0.00000 : 3000.00 ] noreverse
set ylabel "x" 
set yrange [ 0.00000 : 3000.00 ] noreverse
NO_ANIMATION = 1
save_encoding = "utf8"
splot igamma(x,y) lw .1