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    Re: Still on LOP's
    From: Rodney Myrvaagnes
    Date: 2002 Apr 29, 13:03 -0500

    On Mon, 29 Apr 2002 10:03:44 -0400, Noyce, Bill wrote:
    >You don't have to be so careful about the distribution, or about computing
    >equations of lines.  The only thing that determines whether the triangle
    >encloses the true position is the direction of the error of each bearing.
    >The magnitude of the error affects the triangle's size, and how far it is
    >from the true position, but doesn't affect which region of the figure contains
    >the true position.  The triangle encloses the true position if all three
    >bearings are increased a small amount, or if all three bearings are reduced
    >a small amount, but in no other case.  This is the heart of George Huxtable's
    This mixes probable error with the actual error of particular
    measurements. I have already pointed out how many different sizes of
    triangle can occur with the same probable error and the same actual
    Rodney Myrvaagnes                                  J36 Gjo/a
    "Curse thee, thou quadrant. No longer will I guide my earthly way by thee."  Capt. Ahab

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