# set terminal canvas  rounded size 600,400 enhanced fsize 10 lw 1.6 fontscale 1 name "surface1_16" jsdir "."
# set output 'surface1.16.js'
set dummy u, v
set label 1 "This is equal to 1" at -5.00000, -2.00000, 1.50000 center norotate back nopoint
set arrow 1 from -5.00000, -2.10000, 1.40000 to 0.00000, 0.00000, 1.00000 head back nofilled linewidth 1.000 dashtype solid
set view 70, 20, 1, 1
set samples 51, 51
set isosamples 21, 21
set style data lines
set ztics  norangelimit -1.00000,0.25,1.00000
set title "Sinc function" 
set xlabel "X axis" 
set xlabel  offset character -3, -2, 0 font "" textcolor lt -1 norotate
set xrange [ -1.00000 : 1.00000 ] noreverse nowriteback
set ylabel "Y axis" 
set ylabel  offset character 3, -2, 0 font "" textcolor lt -1 rotate
set yrange [ -1.00000 : 1.00000 ] noreverse nowriteback
set zlabel "Z axis" 
set zlabel  offset character -5, 0, 0 font "" textcolor lt -1 norotate
set zrange [ -0.500000 : 1.00000 ] noreverse nowriteback
sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)
GPFUN_sinc = "sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)"
x = 0.0
## Last datafile plotted: "$grid"
splot [-12:12.01] [-12:12.01] sinc(u,v)