Talk:Haversine formula: Difference between revisions

Talk:Haversine formula (view source)

666 bytes added , 11 years ago

→‎Different results: 6372.8 ≈ avg. Great-circle radius, while 6371.0 represents surface area radius

Anonymous user

Revision as of 20:14, 16 August 2012 (view source) Walterpachl (talk \| contribs) (maybe the radius to be used should be specified in addition to the positions) ← Older edit		Revision as of 17:58, 19 August 2012 (view source) rosettacode>Kaimbridge (→‎Different results: 6372.8 ≈ avg. Great-circle radius, while 6371.0 represents surface area radius) Newer edit →
Line 48: Apparently it's the two different values used for the eartH's radius: 6372.8 and 6371.0, respectively- --[[User:Walterpachl\|Walterpachl]] 20:14, 16 August 2012 (UTC) :Right, “6371.0” is the authalic radius based on/extracted from surface area, while “6372.8” is an approximation of the radius of the average circumference (i.e., the average “great-elliptic” or “great-circle radius”), where the boundaries are the meridian (≈ 6367.45 km) and the equator (≈ 6378.14 km). :See ''[http://math.wikia.com/wiki/Ellipsoidal_quadratic_mean_radius Ellipsoidal quadratic mean radius]''. [[User:Kaimbridge\|<span style="border:1px solid green;color:#e55b3c; padding:2px;background:#fde0bc">~<font face="courier new bold" class="title" title="Kaimbridge M. GoldChild">Kaimbridge</font>~</span>]] 17:44, 19 August 2012 (UTC)