r8sr, a Fortran90 library which carries out linear algebra operations for R8SR matrices (real, 64 bit, diagonal + compressed row offdiagonal format).
The information on this web page is distributed under the MIT license.
r8sr 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.