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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Practical Haversine Use
From: Lars Bergman
Date: 2021 Nov 16, 10:30 -0800
From: Lars Bergman
Date: 2021 Nov 16, 10:30 -0800
Tony asked "I wonder how the "10+" logarithms would work in this example?"
And the example was 0.2410/0.3271
With logs 9.3820(-10) - 9.5146(-10). As the first term is smaller than the second, add (and subtract) 10 to the first term:
19.3829(-20) - 9.5146(-10) = 9.8674(-10)
No problem at all! (I get log 0.3271 = 9.5147(-10) but I've used Tony's numbers in the calculation)
Lars
