Estimates the error in the solution of a system of linear equations with a triangular coefficient matrix.
Computes the inverse of a symmetric matrix using U*D*UT or L*D*LT Bunch-Kaufman factorization of matrix in packed storage.
Uses the Cholesky factorization to compute the solution to the system of linear equations with a symmetric (Hermitian) positive-definite band coefficient matrix A, and provides error bounds on the solution.
Multiplies a complex matrix by the unitary matrix Q of the LQ factorization formed by ?gelqf.
Computes a blocked QR factorization of a real or complex "triangular-pentagonal" matrix, which is composed of a triangular block and a pentagonal block, using the compact WY representation for Q.
Multiplies a real matrix by the real orthogonal matrix Q determined by ?sytrd.
Computes selected eigenvalues and eigenvectors of a real symmetric tridiagonal matrix.
Multiplies an arbitrary real matrix C by the real orthogonal matrix Q determined by ?gehrd.