from java.awt import Color
from java.awt import Font
from jhplot  import HPlot3D
from jhplot  import F2D

c1 = HPlot3D("Canvas",600,400)
c1.visible(1)
c1.setNameX("Xaxis")
c1.setNameY("Yaxis")

f1 = F2D("2*exp(-x*y/20)+10*sin(pi*x)/y", -2.0, 5.0, -2.0, 5.0)
f2 = F2D("4*x*y", -2.0, 5.0, -2.0, 5.0)
c1.draw(f1,f2)

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