hallo! does everybody know which kind of objects the function toLatex can manage? thanks simone vantini -- Simone Vantini MOX (Modelling and Scientific Computing) Dipartimento di Matematica "F. Brioschi" Politecnico di Milano P.za Leonardo da Vinci, 32 20133 Milano (Italy) tel: +39 02 2399 4604 email: simone.vantini at mate.polimi.it