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# Re: line integral and antiperiodic BC

- To: femm@yahoogroups.com
- Subject: Re: line integral and antiperiodic BC
- From: vecerkaj@usa.net
- Date: Mon, 18 Jun 2001 08:13:15 -0000
- In-reply-to: <9gdbb2+4akv@eGroups.com>
- User-agent: eGroups-EW/0.82

    Hi Dave
    I have to appologize myself. I realised I used older version of FEMM
    (March 7). Right now I've installed the newest version (March 26) and
    the calculation of the line integral is correct. So it looks like you
    already made the correction and fixed that imperfection.
    Thank you very much, because you pointed out to me, that problem is
    in my own installation of FEMM.

    George Vecerka

    --- In femm@y..., "David Meeker" <dcm3c@a...> wrote:
    > Ack--this is one of those sort of annoying bugs, because I can't
    > duplicate it on my installation--I get the same result in all 3
    cases.
    > I think what is happening is that, in your installation, the
    > program is deciding that points that are on the boundary are
    > actually just outside of the boundary. The B.n integral works by
    > just taking the difference of the values of A at the endpoints of
    > the contour, so if you get an A=0 from a point that it thinks is
    > outside your geometry, that would explain the difference in
    reported
    > values.
    >
    > Anyhow, I'll look into this and see if there is some way that I can
    > make this more robust...
    >
    > Dave.
    >
    >

- References:
  - Re: line integral and antiperiodic BC
    - From: "David Meeker" <dcm3c@aol.com>

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