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    Re: That darned old cocked hat
    From: Peter Fogg
    Date: 2010 Dec 10, 08:05 +1100
    Earlier I wrote:
    Systemic error can be dealt with by bisecting each angle formed by intersecting position lines.

    If a triangle, and azimuths with a spread of less than 180 degrees, then the fix will be outside the triangle.  The probability is 100%.
    With an azimuth spread greater than 180 degrees, then the fix will be at the centre of the triangle.  The probability is, again, 100%.
       
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