On deriving the quasi-minimal residual method. (English) Zbl 0913.65029
A new derivation is offered for the quasi-minimal residual method to solve systems of linear equations. A particular least squares problem is solved by a simple recursion instead of using QR decomposition.
Reviewer: F.Szidarovszky (Tucson)
MSC:
65F10 | Iterative numerical methods for linear systems |
65F20 | Numerical solutions to overdetermined systems, pseudoinverses |