lapack_test, a Fortran77 code which makes example calls to lapack(), which can solve linear systems and compute eigevalues.
LAPACK includes routines to
The source code and documentation for LAPACK is available through the NETLIB web site.
The information on this web page is distributed under the MIT license.
lapack_test is available in a C version and a C++ version and a Fortran77 version and a Fortran90 version and a FreeFem++ version and a Python version.
blas, a Fortran77 code which contains the Basic Linear Algebra Subprograms (BLAS) for level 1 (vector-vector operations), level 2 (matrix-vector operations) and level 3 (matrix-matrix operations), for single precision real arithmetic, double precision real arithmetic, single precision complex arithmetic, and double precision complex arithmetic.
eispack, a Fortran77 code which is an earlier standard package of eigenvalue routines.
GEQP3, a Fortran77 code which contains the portion of the LAPACK library that carries out the QR factorization, with column pivoting, of an M by N rectangular matrix, with N <= M.
LAPACK_EIGEN_TEST, a Fortran77 code which tests some of the LAPACK eigenvalue functions.
LINPACK, a Fortran77 code which is an earlier standard package of linear system solvers.
LINPLUS, a Fortran77 code which contains simple linear solvers for a variety of matrix formats.
SVD_DEMO, a Fortran77 code which demonstrates the Singular Value Decomposition (SVD) for a simple example.
TEST_EIGEN, a Fortran77 code which defines various eigenvalue test cases.
TEST_MAT, a Fortran77 code which defines test matrices, some of which have known determinants, eigenvalues and eigenvectors, inverses, and so on.