from jhplot  import HPlot3D,F2D

c1 = HPlot3D("Canvas",600,400)
c1.setNameX("X")
c1.setNameY("Y")
c1.setNameY("Z")
c1.visible()

c1.setRange(1,100,1,100,0,1000)
f1 = F2D("2*exp(-x*y/20)+10*sin(pi*x)/y+x*y")
c1.draw(f1)

# export to some image (png,eps,pdf,jpeg...)
# c1.export(Editor.DocMasterName()+".eps")