The previously described functions define the specific problem. For the numerical computation of them a set of problem dependent subroutines in Fortran77 has to be provided by the user. They are collected in the file uspec.f.
Parameters of the problem dependent subroutines in the file uspec.f denoted by ``Ausgabe'' or ``Output'' have to be set on exit of the subroutine.
All other parameters which are not explicitly denoted by ``Ausgabe'' or ``Output'' may not be changed in a subroutine. Changing them will be harmful!