- README: description of the computer architectures and test cases; see also a related technical report.
- ARCH: results of the tests for each computer architecture listed in README.
- DATA: (explicit) test matrices used in the tests and plots of the eigenvalue distributions (jpeg).
- INPUT: input files used by the tester.

- Tridiagonal matrix (dimension of the matrix, then [row index, diagonal entry, off diagonal entry])

- Eigenvalues (dimension of the matrix, then eigenvalues in ascending order)
- Eigenvalue distribution (eigenvalue index x eigenvalue magnitude)
- Eigenvalue distribution in log scale (eigenvalue index x eigenvalue magnitude in log scale)

Compresssed tar file containing the matrices in DATA