单词	haversine
释义	haversine /ˈhavəsʌɪn / (also haversin) noun Mathematics Half of a versed sine.For all intents and purposes, the haversine is the most accurate way to calculate distance on a sphere.... The pulse shape is usually assumed to be of haversine, half-sine or some other tapered rectangular shape. Regardless of whether you choose to use the sight reduction tables or prefer the haversine formula you will require a nautical almanac. Origin Late 19th century: contraction of half versed sine.
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