Reduces a pair of matrices to generalized upper Hessenberg form using orthogonal/unitary transformations.
This topic describes LAPACK driver routines used for solving linear least squares problems. Table "Driver Routines for Solving LLS Problems" lists all such routines for the FORTRAN 77 interface. The corresponding routine names in the Fortran 95 interface are without the first symbol.
Computes selected eigenvalues and, optionally, eigenvectors of a Hermitian matrix using the Relatively Robust Representations.
Computes all eigenvalues and, optionally, eigenvectors of a real generalized symmetric definite eigenproblem.
Computes selected eigenvalues and, optionally, eigenvectors of a real generalized symmetric definite eigenproblem with banded matrices.
Computes a matrix-vector product for a complex symmetric matrix.
Computes the LU factorization of a general m-by-n matrix using partial pivoting with row interchanges (unblocked algorithm).
Used by sstedc/dstedc. Solves the 2-by-2 secular equation.