Did the form (left, right) of preconditioning in BiCGSTAB change in R2020B from R2020A?

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Richard Lehoucq
Richard Lehoucq on 16 Oct 2020
Answered: Chidvi Modala on 27 Oct 2020
The documentation for R2020B bicgstab uses right preconditioning wheras R2020A uses left preconditioning. Did the code change or is this a documentation typo?

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Chidvi Modala
Chidvi Modala on 27 Oct 2020
The 'bicgstab' function uses the right preconditioner in all of the MATLAB releases.
There was a documentation and a help text issue in earlier versions. This has been resolved and the documentation page for 'bicgstab' in the newer releases of MATLAB reflects the update.

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