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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Hav-Doniol
From: Hewitt Schlereth
Date: 2015 Jun 15, 11:42 -0700
Hewitt
From: Hewitt Schlereth
Date: 2015 Jun 15, 11:42 -0700
Hanno, don't these methods require you to make a table before you do the multiplying - ie, a preliminary chance to make blunders even ante getting to to the problem?
I'm with Gary and Greg on this one. Though I'm very slow at long multiplication, I do get there. (Then of course there's my backup - baggies of batteries and two-bit calculators.)
Hewitt
I admire your stamina but I'd go crazy.Gents,how can you stand making such complicated long multiplications?You might think I am already crazy using the Vedic / Butterflymultiplication method but as an extremely poor "multiplicator"I can tell you it works wonders for me. If you can spare thetime and patience I ask you give it a chance with a number
of trial runs and see how it fits you really. You might be surprised.If you do I am happy to give you as many examples as you wish.Just ask.HOn Mon, Jun 15, 2015 at 1:11 AM, Gary LaPook <NoReply_LaPook@fer3.com> wrote:I redid Greg's example problem using the haversine table in Bowditch, which has five places, and, not surprisingly, computed the Hc to the accuracy of one-tenth of a minute.
See attached.
gl
Attached File:
(doniol2.pdf: Open and save or View online)
Attached File:
(Donioltest2.pdf: Open and save or View online)
