class HessenbergQR< T >
Definition at line 46 of file hqr.h.
Constructor and destructor.
Definition at line 53 of file hqr.h.
Definition at line 55 of file hqr.h.
Hessenberg matrices' QR transformation.
\ This function is adapted from the Eispack routine 'hqr2.f'. \ This routine returns the real parts of the eigenvalues of a real upper Hessenberg matrix passed on input by the QR method. \ The second parameter is output as the imaginary parts of the eigenvalues. \
|zz||contains (on output) the real and imaginary parts of the eigenvectors. If the i-th eigenvalue is real, the i-th column of zz contains its eigenvector. If the i-th eigenvalue is complex with positive imaginary part, the i-th and (i+1)-th columns of zz contain the real and imaginary parts of its eigenvector, and an other eigenvector is formed by its complex conjugate. |
The documentation for this class was generated from the following file: