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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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    Re: Quartz article: reinstating celestial...
    From: John D. Howard
    Date: 2015 Oct 21, 20:56 -0700

    Try the Hanno Ix et al haversine method.  No negative numbers, no logs, fast and easy.  One trig table of about eight pages.  Pencil and paper, no computer or books of tables needed.  If your calculater goes out you are stuck with ONE multiplacation.  Just saying.

    John H.

       
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