cotangent

[ koh-tan-juhnt, koh-tan- ]

/ koʊˈtæn dʒənt, ˈkoʊˌtæn- /

noun Trigonometry.

(in a right triangle) the ratio of the side adjacent to a given angle to the side opposite.

the tangent of the complement, or the reciprocal of the tangent, of a given angle or arc. Abbreviation: cot, ctn

Also co·tan

[koh-tan]. /ˈkoʊˌtæn/.

Origin of cotangent

First recorded in 1625–35, cotangent is from the New Latin word cotangent- (stem of cotangēns). See co-, tangent

OTHER WORDS FROM cotangent

co·tan·gen·tial

[koh-tan-jen-shuhl], /ˌkoʊ tænˈdʒɛn ʃəl/, adjective

Words nearby cotangent

Cosyra, cosy up, cot, Cotabato, cotan, cotangent, COTC, cot case, cot death, cote, coteach

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for cotangent

cotangent

/ (kəʊˈtændʒənt) /

noun

(of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the adjacent side to that of the opposite side; the reciprocal of tangentAbbreviation: cot, cotan, ctn

Derived forms of cotangent

cotangential (ˌkəʊtænˈdʒɛnʃəl), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for cotangent

cotangent

[ kō-tăn′jənt ]

The ratio of the length of the adjacent side of an acute angle in a right triangle to the length of the opposite side. The cotangent is the inverse of the tangent.

The ratio of the ordinate to the abscissa of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.

A function of a number x, equal to the cotangent of an angle whose measure in radians is equal to x.

单词	cotangent
释义	cotangent [ koh-tan-juhnt, koh-tan- ] / koʊˈtæn dʒənt, ˈkoʊˌtæn- / noun Trigonometry. (in a right triangle) the ratio of the side adjacent to a given angle to the side opposite. the tangent of the complement, or the reciprocal of the tangent, of a given angle or arc. Abbreviation: cot, ctn Also co·tan [koh-tan]. /ˈkoʊˌtæn/. Origin of cotangent First recorded in 1625–35, cotangent is from the New Latin word cotangent- (stem of cotangēns). See co-, tangent OTHER WORDS FROM cotangent co·tan·gen·tial [koh-tan-jen-shuhl], /ˌkoʊ tænˈdʒɛn ʃəl/, adjective Words nearby cotangent Cosyra, cosy up, cot, Cotabato, cotan, cotangent, COTC, cot case, cot death, cote, coteach Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for cotangent cotangent / (kəʊˈtændʒənt) / noun (of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the adjacent side to that of the opposite side; the reciprocal of tangentAbbreviation: cot, cotan, ctn Derived forms of cotangent cotangential (ˌkəʊtænˈdʒɛnʃəl), adjective Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for cotangent cotangent [ kō-tăn′jənt ] The ratio of the length of the adjacent side of an acute angle in a right triangle to the length of the opposite side. The cotangent is the inverse of the tangent. The ratio of the ordinate to the abscissa of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative. A function of a number x, equal to the cotangent of an angle whose measure in radians is equal to x. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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