Mail to: lawhingwing@hotmail.com A work done by University of Sydney, under supervision of Dr.D.Levy and Ms.R.Popp (C) Copyright Bruce Law, 1997. Last Revised: 19-Nov-2004 The italian version updated for LabVIEW 6i by Prof. Enrico Purchi (enricopurchi@romascuola.net ) dell'ITIS "E. FERMI" di Frascati (ROMA)