In a message dated 09-Nov-1998 06:31:43 AM Central Standard Time, [log in to unmask] writes: << Is there any popular CFD code written in Ada ? What is the performance of the language in numerical applications ? Any examples of numerical software written in Ada ? >> Actually, your code is directly accessible from Ada, so rewriting is not necessary. Ada95 has a direct interface to Fortran (even array subscripting) so using existing Fortran code is no problem. Ada's Numerics annex is designed to answer just the types of questions you have. You will have to find a compiler that supports it, like GNAT, for your platform. But you'd probably have to look for a C++ compiler too. Todd Coniam p.s. Sorry, I don't have any experience to pass on about interfacing to Fortran, I just noticed nobody else responded with it.