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    Re: Z tangent formula
    From: John Simmonds
    Date: 2005 Jul 8, 21:01 +1000
    Tan Z = sin (hour-angle) / (cos (hour-angle) sin lat - cos lat tan dec)


    On Thu, 7 Jul 2005 20:04:46 +1000, Peter Fogg wrote:
    >?________________________________________
    >?From: John Simmonds
    >
    >>?Actually, I would suggest that the Sharp nav calculator uses the
    >>?same formula, truncated to 1 decimal place :)
    >>
    >
    >?Which same formula?
    >
    >?I would expect that any shortened values would result from
    >?rounding: ie, the closest value being adopted. This does not seem
    >?to be happening for 2 of the 3 samples.

       
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