cotangent

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Related to cotangential: tangential

cotangent:

see trigonometrytrigonometry
[Gr.,=measurement of triangles], a specialized area of geometry concerned with the properties of and relations among the parts of a triangle. Spherical trigonometry is concerned with the study of triangles on the surface of a sphere rather than in the plane; it is
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Cotangent

 

one of the trigonometric functions; denoted by cot or ctn. The cotangent of an acute angle in a right triangle is the ratio of the adjacent side to the opposite side.

cotangent

[kō′tan·jənt]
(mathematics)
The reciprocal of the tangent. Denoted cot; ctn.

cotangent

(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