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    Re: Haversine- how to derive it?
    From: Ed Popko
    Date: 2015 May 17, 04:00 -0700

    Sam, yes, this is correct.

    Now to return to Frank's comments about the antiquity and non-utility today of using Haversines in navigation, I have attached a short paper entitled "Haversine Navigation" issued by someone from the U.S. Power Squadron District 23.  It seems to claim that Haversines are quite useful today.

    I'm still trying to figure it out. I have it programmed on my HP calculator as a standard trig function and have used it in a couple of cases just to see what it does.

    Any comment on these opposing views about Haversines' utility?

     



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