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    Re: Consistent "away" intercepts. Why?
    From: Bill Lionheart
    Date: 2019 May 2, 08:49 -0700

    The fun thing from the geometry point of view again (Oh no Professor Lionheart is going on about triangles again!)

    If the only error is a constant error for each of three lines of position the true position is the incentre of the cocked hat, or one of the excentres, depending on which side of the lines of position the GP of the body is on.

    (Image from Wikipedia see https://en.wikipedia.org/wiki/Incircle_and_excircles_of_a_triangle#/media/File:Incircle_and_Excircles.svg)

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