Factorization
- chol — Cholesky factorization
- fullrf — full rank factorization
- fullrfk — full rank factorization of A^k
- hess — Hessenberg form
- lu — LU factorization with pivoting
- qr — QR decomposition
- rankqr — rank revealing QR factorization
- schur — [ordered] Schur decomposition of matrix and pencils
- sqroot — W*W' hermitian factorization