On Sat, 21 Mar 2015, Qi Shi wrote: In general, no. It is quite unusual in econometrics that you need to integrate generic functions. Of course, we could provide such a facility, if you give us a convincing argument for that. That said, we do have the quadtable() function, that you can use for comuputing definite integrals quickly and efficiently in some special cases, which are the most commonly ones encountered in econometrics. ------------------------------------------------------- Riccardo (Jack) Lucchetti Dipartimento di Scienze Economiche e Sociali (DiSES) Università Politecnica delle Marche (formerly known as Università di Ancona) r.lucchetti(a)univpm.it http://www2.econ.univpm.it/servizi/hpp/lucchetti -------------------------------------------------------