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    Re: POL and arctan2
    From: Bill B
    Date: 2005 Nov 10, 23:02 -0500

    The second post was an itchy trigger finger.  The first and third posts
    rushed out before a meeting.  I feared I was too hasty thinking about it in
    transit.  Returning home, I found all but the below was pure gibberish as I
    managed to get caught in my own circular argument.
    While there is a high correlation between the first value returned from
    R-to-P and cosine of Hc, they are not nearly close enough for any meaningful
    use in navigation.
    Back to the drawing board.
    > All R-P  knows how to do (when properly signed) is connect the dots.  Give
    > it an x and y value relative to 0,0, and it reports a distance and angle
    > from 0,0.  It does not know you messed with it's little routine when you
    > determined the values for x and y.

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