r83, a Fortran90 code which carries out some basic linear algebra operations on R83 matrices (real 64 bit precision tridiagonal 3xN format).
The information on this web page is distributed under the MIT license.
r83 is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version and a Python version.
linear_algebra, Fortran90 codes which carry out various linear algebra operations for matrices stored in a variety of formats.