COLSYS

Short description:
The code is based on the approximation of the solution of the differential equation by a piecewise polynomial with collocation at Gauss points. The release of the code available here is not equal to the original code, but has been changed in order to work in R. This explain why we have added R at the end of the name.
Download:
 Source codes:
 solver: colsysR.f
 driver: colsysRd.f
 auxiliary files: colmodRa.f
How to perform tests:
The file report.f contains a user interface.
Once you have obtained all the fortran files, in the directory tests you can run
make PROBLEM=problem SOLVER=colsysR
where problem is one of the problem of this testset. This will yield the executable "dotest" that solves the problem, of which the Fortran routines are in the file problem.f.