# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'lnGamma.1.png'
set border 895 front lt black linewidth 1.000 dashtype solid
unset cornerpoles
set grid nopolar
set grid xtics nomxtics ytics nomytics ztics nomztics nortics nomrtics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid vertical layerdefault   linecolor rgb "gray"  linewidth 1.000 dashtype solid,  linecolor rgb "gray"  linewidth 1.000 dashtype solid
unset key
set view 66, 304, 1.00286, 1.2
set samples 401, 401
set isosamples 400, 400
set style data lines
set xyplane at 0
set xtics border in scale 1,0.5 mirror norotate  offset character 0, -0.5, 0 autojustify
set xtics  norangelimit 1 
set ytics border in scale 1,0.5 mirror norotate  offset character 0, -0.5, 0 autojustify
set ytics  norangelimit 1 
set cbtics  norangelimit logscale autofreq 
set title "{/Times:Italic=16 Γ(x+iy) }{/Times:Normal=18  = exp(lnGamma(x + y*I)}" 
set title  offset character 0, 0.5, 0 font "" textcolor lt -1 norotate
set trange [ * : * ] noreverse nowriteback
set urange [ * : * ] noreverse nowriteback
set vrange [ * : * ] noreverse nowriteback
set xlabel "{/Times:Italic=16 x}" 
set xlabel  offset character -3, -1, 0 font "" textcolor lt -1 norotate
set xrange [ -3.50000 : 3.50000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set ylabel "{/Times:Italic=16 iy}" 
set ylabel  offset character 5, -1, 0 font "" textcolor lt -1 rotate
set yrange [ -3.00000 : 3.00000 ] noreverse nowriteback
set y2range [ * : * ] noreverse writeback
set zrange [ 0.00000 : 8.00000 ] noreverse nowriteback
set cbrange [ 0.0100000 : 20.0000 ] noreverse nowriteback
set rrange [ * : * ] noreverse writeback
set logscale cb 10
set pm3d lighting primary 0.5 specular 0.2 spec2 0.4
set pm3d spotlight rgb 0xff0044 rot_x 50 rot_z 90 Phong 4.0
set palette negative nops_allcF maxcolors 0 gamma 2 color model RGB 
set palette cubehelix start 0 cycles 2 saturation 1
set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault
unset colorbox
Gamma(z) = exp(lnGamma(z))
NO_ANIMATION = 1
save_encoding = "utf8"
splot abs(Gamma(x + y*I)) with pm3d title "{/Times:Italic=16 Γ(x+iy)}"