Cotangent -- from Wolfram MathWorld
The cotangent function cotz is the function defined by cotz = 1/(tanz) (1) = (i(e^(iz)+e^(-iz)))/(e^(iz)-e^(-iz)) (2) = (i(e^(2iz)+1))/(e^(2iz)-1), (3) where tanz is the ...

Trigonometric functions - Wikipedia, the free encyclopedia
The cotangent cot(A) is the reciprocal of tan(A), i.e. the ratio of the length of the adjacent side to the length of the opposite side: Slope definitions

cotangent - definition of cotangent by the Free Online Dictionary ...
co·tan·gent (k-t n j nt) n. Abbr. cot. 1. The reciprocal of the tangent of an angle in a right triangle. 2. The tangent of the complement of a directed angle or arc.

Mathwords: Cotangent
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What is the definition of cotangent?
In a right triangle, the ratio of the length of the adjacent side divided by the length of the opposite side of the angle. Cotangent is the reverse of tangent.

Inverse Cotangent -- from Wolfram MathWorld
The inverse cotangent is the multivalued function cot^(-1)z (Zwillinger 1995, p. 465), also denoted arccotz (Abramowitz and Stegun 1972, p. 79; Harris and Stocker 1998, p. 311 ...

cotangent - Definition of cotangent at YourDictionary.com
an equivalent, positive or negative ratio for certain related angles (Ex.: the cotangent of 57° or 237° is .6494, of 123° or 303° is −.6494) or real numbers representing ...

cotangent: Definition from Answers.com
(Click to enlarge) cotangent cot θ= (Academy Artworks) cotangent n. ( Abbr. cot ) The reciprocal of the tangent of an angle in a right triangle

Cotangent Calculator Function (cot)
cotangent, cot, cotangent calculator function, trigonometry

Cotangent bundle - Wikipedia, the free encyclopedia
In mathematics, especially differential geometry, the cotangent bundle of a smooth manifold is the vector bundle of all the cotangent spaces at every point in the manifold.