Hessenberg

f08nec	Orthogonal reduction of real general matrix to upper Hessenberg form
f08nfc	Generate orthogonal transformation matrix from reduction to Hessenberg form determined by f08nec
f08ngc	Apply orthogonal transformation matrix from reduction to Hessenberg form determined by f08nec
f08nsc	Unitary reduction of complex general matrix to upper Hessenberg form
f08ntc	Generate unitary transformation matrix from reduction to Hessenberg form determined by f08nsc
f08nuc	Apply unitary transformation matrix from reduction to Hessenberg form determined by f08nsc
f08pec	Eigenvalues and Schur factorization of real upper Hessenberg matrix reduced from real general matrix
f08pkc	Selected right and/or left eigenvectors of real upper Hessenberg matrix by inverse iteration
f08psc	Eigenvalues and Schur factorization of complex upper Hessenberg matrix reduced from complex general matrix
f08pxc	Selected right and/or left eigenvectors of complex upper Hessenberg matrix by inverse iteration
f08wec	Orthogonal reduction of a pair of real general matrices to generalized upper Hessenberg form
f08wsc	Unitary reduction of a pair of complex general matrices to generalized upper Hessenberg form
f08xec	Eigenvalues and generalized Schur factorization of real generalized upper Hessenberg form reduced from a pair of real general matrices
f08xsc	Eigenvalues and generalized Schur factorization of complex generalized upper Hessenberg form reduced from a pair of complex general matrices