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    Re: Dozier Formula
    From: Aubrey O´Callaghan
    Date: 2001 Nov 20, 6:01 AM

    Dan,
    The reason for going rectangular to polar is so that the solution comes out
    in the correct quadrant.
    You can appreciate that arctan (A/B) = arctan(-A/-B). One solution is in
    the NE quadrant the other in the SW quadrant.
    Some programming languages have a function atan2 which takes 2 arguments
    and ensures that the computed angle is correct. (m.soft excel has this).
    The R->P is a workaround for calculators.
    Aubrey.
    
    At 14:36 19/11/01, you wrote:
    >Rewritten as because of the result coming out 180 degrees off and of using
    >the Polar-to-rectangular function:
    >         tan(Zn - 180) = sin LHA / cos LHA * sin L - cos L * tan d
    >
    >Then *using invented notation* rewritten again as:
    >         Zn = 180 + R->P (sin LHA * cos d, cos LHA * cos d * sin L - cos L
    > * tan d
    >
    >Now can someone explain what the COMMA after the first cos d stands for?
    >
    >
    >Dan Hogan WA6PBY
    >C27 "Gacha"
    >dhhogan{at}verimail.com
    >Nav-L Page: http://www.wa6pby.com
    

       
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