toms641, a Fortran77 code which computes the exact solution of a system of linear equations, by John Springer. This is a version of ACM TOMS algorithm 641.
The original version of toms641 is available through ACM: https://www.acm.org/pubs/calgo or NETLIB: http://www.netlib.org/toms/index.html
The computer code and data files made available on this web page are distributed under the MIT license
toms641 is available in a Fortran77 version.
Original Fortran77 version by John Springer.