On Tue, Aug 2, 2016 at 2:02 PM, Campbell, Ian
<[email protected]> wrote:
>
> I've tried the mean-square and RMS values, but they're both orders of
> magnitude away from the residual returned by '.sweep'. As such, can you
> please tell me the formula used by '.sweep' to compute the residual, so that
> I may use the same one?
I think it's the L2 norm of "A * x - b" without any normalization,
where x is the variable value before the linear solve. See,
https://github.com/usnistgov/fipy/blob/develop/fipy/solvers/solver.py#L135
--
Daniel Wheeler
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