LAQR0: computes the eigenvalues of a Hessenberg matrix H and, optionally, the matrices T and Z from the Schur decomposition H = Z T Z**H, where T is an upper triangular matrix (the Schur form), and Z is the unitary matrix of Schur vectors. Optionally Z may be postmultiplied into an input unitary matrix Q so that this routine can give the Schur factorization of a matrix A which has been reduced to the Hessenberg form H by the unitary matrix Q: A = Q*H*Q**H = (QZ)*H*(QZ)**H.
More...
LAQR0: computes the eigenvalues of a Hessenberg matrix H and, optionally, the matrices T and Z from the Schur decomposition H = Z T Z**H, where T is an upper triangular matrix (the Schur form), and Z is the unitary matrix of Schur vectors. Optionally Z may be postmultiplied into an input unitary matrix Q so that this routine can give the Schur factorization of a matrix A which has been reduced to the Hessenberg form H by the unitary matrix Q: A = Q*H*Q**H = (QZ)*H*(QZ)**H.
◆ la_claqr0()
| la_lapack::laqr0::la_claqr0 |
◆ la_dlaqr0()
| la_lapack::laqr0::la_dlaqr0 |
◆ la_qlaqr0()
| la_lapack::laqr0::la_qlaqr0 |
◆ la_slaqr0()
| la_lapack::laqr0::la_slaqr0 |
◆ la_wlaqr0()
| la_lapack::laqr0::la_wlaqr0 |
◆ la_zlaqr0()
| la_lapack::laqr0::la_zlaqr0 |
The documentation for this interface was generated from the following file:
1.13.2