A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John Brown
Date: 2015 May 17, 02:55 -0700
Both Burton's 4 figure tables (out of print) and the tables in Reed's Nautical Almanac (published annually) substitute versines (1-cos (x)) for haversines in sight reduction formulae otherwise unaltered. Can someone please explain why the haversine, with a range of values from 0 - 1, is more usually preferred over the versine function (range 0-2)?