{
   auto c2e = new TCanvas("c2e","c2e",600,400);
   auto h2e = new TH2F("h2e","TH2 drawn with option E",40,-4,4,40,-20,20);
   float px, py;
   for (Int_t i = 0; i < 25000; i++) {
      gRandom->Rannor(px,py);
      h2e->Fill(px,5*py);
   }
   h2e->Draw("E");
}