test_eigen, a FORTRAN90 code which generates eigenvalue tests.
The current version of the code can only generate a symmetric or nonsymmetric matrix of arbitrary size, with eigenvalues distributed according to a normal distribution whose mean and standard deviation are specified by the user (subroutines R8SYMM_GEN and R8NSYMM_GEN).
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
test_eigen is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.
ARPACK, a FORTRAN90 code which computes eigenvalues for large matrices;
EISPACK, a FORTRAN90 code which carries out eigenvalue computations; superseded by LAPACK;
JACOBI_EIGENVALUE, a FORTRAN90 code which implements the Jacobi iteration for the iterative determination of the eigenvalues and eigenvectors of a real symmetric matrix.
LAPACK_EIGEN_TEST, a FORTRAN90 code which tests some of the LAPACK eigenvalue functions.
POWER_METHOD, a FORTRAN90 code which carries out the power method for finding a dominant eigenvalue and its eigenvector.
TEST_MAT, a FORTRAN90 code which defines test matrices.