**r83_np_test**,
a FORTRAN90 code which
carries out some basic linear algebra operations on R83_NP matrices
(real 64 bit precision tridiagonal 3xN format, nonpivoting factorization).

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

r83_np, a FORTRAN90 code which contains linear algebra routines for R83_NP matrices (real, 64 bit, tridiagonal 3xN format, nonpivoting factorization).

- r83_np_test.f90, calls all the tests.
- r83_np_test.sh, runs all the tests.
- r83_np_test.txt, the output file.