Hessenberg

F06QRF   QR or RQ factorization by sequence of plane rotations, real upper Hessenberg matrix
F06QVF   Compute upper Hessenberg matrix by sequence of plane rotations, real upper triangular matrix
F06RMF   1-norm, -norm, Frobenius norm, largest absolute element, real Hessenberg matrix
F06TRF   QR or RQ factorization by sequence of plane rotations, complex upper Hessenberg matrix
F06TVF   Compute upper Hessenberg matrix by sequence of plane rotations, complex upper triangular matrix
F06UMF   1-norm, -norm, Frobenius norm, largest absolute element, complex Hessenberg matrix
F08NEF   Orthogonal reduction of real general matrix to upper Hessenberg form
F08NFF   Generate orthogonal transformation matrix from reduction to Hessenberg form determined by F08NEF
F08NGF   Apply orthogonal transformation matrix from reduction to Hessenberg form determined by F08NEF
F08NSF   Unitary reduction of complex general matrix to upper Hessenberg form
F08NTF   Generate unitary transformation matrix from reduction to Hessenberg form determined by F08NSF
F08NUF   Apply unitary transformation matrix from reduction to Hessenberg form determined by F08NSF
F08PEF   Eigenvalues and Schur factorization of real upper Hessenberg matrix reduced from real general matrix
F08PKF   Selected right and/or left eigenvectors of real upper Hessenberg matrix by inverse iteration
F08PSF   Eigenvalues and Schur factorization of complex upper Hessenberg matrix reduced from complex general matrix
F08PXF   Selected right and/or left eigenvectors of complex upper Hessenberg matrix by inverse iteration
F08WEF   Orthogonal reduction of a pair of real general matrices to generalized upper Hessenberg form
F08WSF   Unitary reduction of a pair of complex general matrices to generalized upper Hessenberg form
F08XEF   Eigenvalues and generalized Schur factorization of real generalized upper Hessenberg matrix reduced from a pair of real general matrices
F08XSF   Eigenvalues and generalized Schur factorization of complex generalized upper Hessenberg matrix reduced from a pair of complex general matrices

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© The Numerical Algorithms Group Ltd, Oxford UK. 2001