#３Dグラフ　　　z=f(x,y)プロット
set  title "3D Drawing" font"Century,20"
set isosamples 50
set xrange[-3:3]
set yrange[-3:3]
set palette defined(0 "blue",1 "green",2 "yellow",4 "orange",5 "cyan")
splot 4*exp(-(x*x+y*y)) 
pause -1
splot 8*exp(-(x*x+y*y)) with pm3d
pause -1
w(x,y)=sqrt(x*x+y*y)
splot 4*w(x,y) with pm3d
pause -1



load"2d1.plt"