petsc-3.7.1 2016-05-15
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# KSPSYMMLQ

This code implements the SYMMLQ method.

### Options Database Keys

see KSPSolve() - Many br Many br

Notes: The operator and the preconditioner must be symmetric for this method. The Many brpreconditioner must be POSITIVE-DEFINITE. Many br

Supports only left preconditioning. Many br

Reference: Paige & Saunders, 1975. Many br

### See Also

KSPCreate(), KSPSetType(), KSPType (for list of available types), KSP

Level:beginner
Location:src/ksp/ksp/impls/symmlq/symmlq.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages