There is a reason why these things are still written in FORTRAN: they run much faster than C-based versions. Some people say that C++ with templates can get clo

There is a reason why these things are still written in FORTRAN: they run much faster than C-based versions. Some people say that C++ with templates can get closer to FORTRAN, but even if that is true, creating libraries for non-C++ languages from C++ template-based code is very complicated.