- arc cosine
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Trig. the angle, measured in radians, that has a cosine equal to a given number. Abbr.: arc cos; Symbol: cos-1 Also called inverse cosine.[1905-10]
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Universalium. 2010.
arc cosine
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arc cosine — noun the inverse function of the cosine; the angle that has a cosine equal to a given number • Syn: ↑arccosine, ↑arccos, ↑inverse cosine • Hypernyms: ↑trigonometric function, ↑circular function * * * noun … Useful english dictionary
arc — [α:k] noun 1》 a curve forming part of the circumference of a circle or other figure. ↘a curving trajectory. ↘[as modifier] Mathematics indicating the inverse of a trigonometrical function: arc cosine. 2》 a luminous electrical discharge… … English new terms dictionary
arc cos — See arc cosine. * * * … Universalium
arc cos — See arc cosine … Useful english dictionary
Cosine — Co sine (k? s?n), n. [For co. sinus, an abbrev. of L. complementi sinus.] (Trig.) The sine of the complement of an arc or angle. See Illust. of {Functions}. [1913 Webster] … The Collaborative International Dictionary of English
cosine — /koh suyn/, n. 1. Trigonom. a. (in a right triangle) the ratio of the side adjacent to a given angle to the hypotenuse. b. the sine of the complement of a given angle or arc. Abbr.: cos 2. Math. (of a real or complex number x) the function cos x… … Universalium
cosine — co•sine [[t]ˈkoʊ saɪn[/t]] n. math. a) (in a right triangle) the ratio of the side adjacent to a given angle to the hypotenuse b) the sine of the complement of a given angle or arc Abbr.: cos • Etymology: 1625–35; < NL cosinus. See co , sine … From formal English to slang
inverse cosine — noun the inverse function of the cosine; the angle that has a cosine equal to a given number • Syn: ↑arc cosine, ↑arccosine, ↑arccos • Hypernyms: ↑trigonometric function, ↑circular function * * * noun … Useful english dictionary
inverse cosine — Trig. See arc cosine. [1905 10] * * * … Universalium
Meridian arc — In geodesy, a meridian arc measurement is a highly accurate determination of the distance between two points with the same longitude. Two or more such determinations at different locations then specify the shape of the reference ellipsoid which… … Wikipedia
