[Octave-patch-tracker] [patch #9282] add minres for sparse linear systems

[Xie Rui]

Follow-up Comment #12, patch #9282 (project octave):

I removed the try...catch inside the iteration and the check of ishermitian.

I changed the stagnation criterion to norm(resvec(k+1)-resvec(k)) <= eps *
norm(resvec(k+1)).

I changed the use of preconditioner. Now it uses m1 and m2 as a split
preconditioner. However, it still uses m1 as a left preconditioner when m2
does not exist.

(file #40010)
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Additional Item Attachment:

File name: minres.m                       Size:20 KB


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