**r83_test**,
a C++ program which
calls r83() to
carry out some basic linear algebra operations on R83 matrices
(real 64 bit precision tridiagonal 3xN format).

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

r83, a C++ library which contains linear algebra routines for r83 matrices (real, 64 bit, tridiagonal 3xN format).

- r83_test.cpp, a sample calling program.
- r83_test.sh, runs all the tests.
- r83_test.txt, the output file.