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    Re: Greg's article on hav-Doniol in "Ocean Navigator"
    From: Andrés Ruiz
    Date: 2015 Jun 15, 13:16 +0200
    Thanks hanno for the PDF of the Zn diagram, it works fine!

    I love the method because of its simplicity, (only one diagram and two pages table fod haversines), and robustness.

    In a practical way, when I perform the SR by hand, 1 moa is enough for me, aboard my 8 m yacht with a marine sextant, the Bay of Biscay is rarely in calm.

    I have tested the method for latitude N and S in combination with declination N and S (Hanno Haversine.source for test.pdf) and works very well.
    The file could be of interested  for math lovers, see that uses the absolute values of the input data.

    Thanks to all contributors.
    fair winds,
    --
    Andrés Ruiz
    Navigational Algorithms
    http://sites.google.com/site/navigationalalgorithms/

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