versed sine
Noun
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Noun
versed sine (plural versed sines)
- (trigonometry) The trigonometric function 1 − cos(x).
- 1753, John Robertson, The Construction of the Logarithmic Lines on the Gunter′s Scale, Royal Society (Great Britain), Philosophical Transactions: 1750-1755, page 340 ↗,
- For the divisions, to be laid on this line, are the differences between the logarithm versed sine of 180°, and the logarithm versed sines of the successive arcs.
- 1805, John William Norie, A New and Complete Epitome of Practical Navigation, page xxii ↗,
- But if the given arch exceed 90°, find the natural co-sine of its supplement, which add to 1000000, and the sum will be the natural versed sine required.
- 1806, John Garnett, Tables Requisite To Be Used with The Nautical Ephemeris, page 41 ↗,
- The Natural Sines in this table are fractions (radius being unit); and are particularly adapted to Dunthorne′s and other methods of clearing the moon′s distance from the effects of parallax and refraction, where natural sines or versed sines are used ; […] .
- 1753, John Robertson, The Construction of the Logarithmic Lines on the Gunter′s Scale, Royal Society (Great Britain), Philosophical Transactions: 1750-1755, page 340 ↗,
- German: Versinus, Sinus versus
- Italian senoverso
- Spanish: seno verso
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.002