from jhplot  import HPlot3D,F2D


c1 = HPlot3D("Canvas",600,400)
c1.visible()
c1.setNameX("X")
c1.setNameY("Y")
c1.setRange(1,10,1,10,0,20)
f1 = F2D("2*exp(-x*y/20)+10*sin(pi*x)")
c1.draw(f1)
f2 = F2D("x*y*cos(x)",1,10,1,10)
c1.draw(f2)

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