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    Re: Review of the Longhand Haversine Sight Reduction method
    From: Gary LaPook
    Date: 2015 Jun 27, 01:59 -0700

    I followed your mulitplication on your form:

    http://fer3.com/arc/imgx/hav-DONIOL-worksheet-2.pdfhttp://fer3.com/arc/imgx/hav-DONIOL-worksheet-2.pdf

    But it appears that you only got the right answer (truncated) by adding a "fudge factor" of "6." Without that you would not have gotten the correct answer. You said it is a "carry," a carry from where? If this method of multiplication is good then why doesn't it produce the correct answer of 12196860 that could be rounded off if needed. Where are the rest of the digits in the multiplication result? 

     

     

    gl

       
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