This directory contains source codes (Fortran 90/Fortran 95/F) to define and use rationals exactly in a program Fortran. modrat.f90: module to define the type rational and procedures to use this type of variable prograt: test program for module "modrat.f90" Pauline Dumont E-mail: pauline17513@yahoo.fr Dr Claude Semay Theoretical Nuclear Physics Université de Mons-Hainaut, Place du Parc, 20, BE-7000 Mons, Belgium Phone (direct): +32 (0)65 37 34 67 // Fax: +32 (0)65 37 30 54 E-mail : claude.semay@umh.ac.be Internet: http://www.umh.ac.be/~pnt/