5 June 2024 9:29:46.540 AM test_eigen_test(): Fortran77 version Test test_eigen(). r8symm_gen_test(): r8symm_gen() makes an arbitrary size symmetric matrix with known eigenvalues and eigenvectors. Real data is declared as "DOUBLE PRECISION". The matrix A: Col 1 2 3 4 5 Row 1 9.40734 1.68567 -1.52911 -1.46873 -1.94103 2 1.68567 8.41696 -0.651268 -1.69475 -1.82240 3 -1.52911 -0.651268 7.56200 3.30393 4.13024 4 -1.46873 -1.69475 3.30393 9.99262 2.90974 5 -1.94103 -1.82240 4.13024 2.90974 10.9546 The eigenvector matrix Q: Col 1 2 3 4 5 Row 1 -0.339299 0.273156 -0.503423 -0.742966 -0.694905E-01 2 -0.280538 -0.380912 0.693761 -0.501496 0.208329 3 0.445337 -0.114453 0.163808 -0.279106 -0.826948 4 0.498567 0.702595 0.331961 -0.223529 0.312454 5 0.599400 -0.523021 -0.358091 -0.261989 0.412675 The eigenvalue vector LAMBDA: 1 18.395201 2 7.6361560 3 7.1697009 4 8.8443793 5 4.2880821 LAMBDA versus the column norms of A*Q: 1: 18.3952 18.3952 2: 7.63616 7.63616 3: 7.16970 7.16970 4: 8.84438 8.84438 5: 4.28808 4.28808 r8nsymm_gen_test() r8nsymm_gen() makes an arbitrary size nonsymmetric matrix with known eigenvalues and eigenvectors. Real data is declared as "DOUBLE PRECISION". The nonsymmetric matrix A: Col 1 2 3 4 5 Row 1 6.17899 -2.33886 5.79999 -1.04678 3.56261 2 -8.01488 9.67227 -13.9557 1.67266 -10.6567 3 19.2172 5.19619 18.6281 -8.16000 -3.31104 4 -14.3595 -3.72904 6.88131 -0.601525 1.77608 5 15.7213 2.35505 15.5004 -5.02704 13.7774 The orthogonal factor Q: Col 1 2 3 4 5 Row 1 -0.290931 0.847970 0.174796 0.991181E-01 -0.394878 2 -0.336064E-02 -0.851075E-01 -0.678783 -0.430473 -0.588806 3 0.118923 -0.218209 -0.162380 0.861555 -0.411824 4 -0.162066 0.324630 -0.692878 0.247373 0.571906 5 -0.935382 -0.347426 0.474771E-01 0.373939E-01 -0.265141E-01 The upper triangular matrix T: Col 1 2 3 4 5 Row 1 14.7034 18.3952 7.63616 7.16970 8.84438 2 0.00000 16.0647 12.6752 16.3469 15.2477 3 0.00000 0.00000 1.66957 0.673861 20.9240 4 0.00000 0.00000 0.00000 11.9712 10.1984 5 0.00000 0.00000 0.00000 0.00000 3.24632 The sorted eigenvalues LAMBDA: 1 1.6695666 2 3.2463221 3 11.971235 4 14.703418 5 16.064671 test_eigen_test(): Normal end of execution. 5 June 2024 9:29:46.540 AM