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Previous: Convergence
Up: Conjugate Gradient Squared Method (CGS)
Previous Page: Convergence
Next Page: BiConjugate Gradient Stabilized (Bi-CGSTAB)
CGS requires about the same number of
operations per iteration as
BiCG, but does not involve computations with . Hence, in
circumstances where computation with
is impractical, CGS may be
attractive.
The pseudocode for the Preconditioned Conjugate Gradient Squared
Method with preconditioner is given in Figure
.