Cotan



[koh-tan-juh nt, koh-tan-] /koʊˈtæn dʒənt, ˈkoʊˌtæn-/

noun, Trigonometry.
1.
(in a right triangle) the ratio of the side adjacent to a given angle to the side opposite.
2.
the tangent of the complement, or the reciprocal of the tangent, of a given angle or arc.
Abbreviation: cot, ctn.
/ˈkəʊˌtæn/
abbreviation
1.
cotangent
/kəʊˈtændʒənt/
noun
1.
(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 tangent Abbreviation cot, cotan, ctn
n.

from co. tangent, abbreviation of complement + tangent.
cotangent
(kō-tān’jənt)

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