cotangent

cot θ = ^b/_a

co·tan·gent

(kō-tăn′jənt, kō′tăn′-)

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.

co′tan·gen′tial (-jĕn′shəl) adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cotangent

(kəʊˈtændʒənt)

(Mathematics) (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 or ctn

cotangential adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

co•tan•gent

(koʊˈtæn dʒənt, ˈkoʊˌtæn-)

n.

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. Abbr.: cot, ctn

Also called co•tan (ˈkoʊˌtæn)

[1625–35; < New Latin cotangent-, s. of cotangēns]

co`tan•gen′tial (-ˈdʒɛn ʃəl) adj.

co·tan·gent

(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 inverse of a tangent.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

cotangent - ratio of the adjacent to the opposite side of a right-angled triangle

cotan

circular function, trigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle

Translations

kotangens

συνεφαπτομένη

cotangente

kotangentti

cotangente

cotangens

co-tangente

cotangent

cotangent

[kəʊˈtændʒənt] n (Math) → cotangente f

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

Mentioned in

References in periodicals archive

Kato, An addition type formula for the double cotangent function, Ph.D.

Hypertranscendence of the multiple sine function for a complex period

Pratiwi, "Solution of Klein Gordon equation for hyperbolic cotangent potential in the presence of a minimal length using Hypergeometric method," Journal of Physics: Conference Series, vol.

The Application of Minimal Length in Klein-Gordon Equation with Hulthen Potential Using Asymptotic Iteration Method

Distinct unit increments of tangent and cotangent value range within the whole cycle (Figure 4).

Optimization of Magnetic-Grating-Like Stroke-Sensing Cylinder Based on Response Quality Evaluation Algorithm

from the wall according to an assumed cotangent relationship with

Diesel Adsorption to Polyvinyl Chloride and Iron During Contaminated Water Flow and Flushing Tests

Mondal, Cotangent similarity measure of rough neutrosophic sets and its application to medical diagnosis, "Journal of New Theory," 4(2015), 90-102.

Rough neutrosophic hyper-complex set and its application to multiattribute decision making

The rise to base radius ratio (f/[r.sub.2]) of the footing is taken as the cotangent of the vertical semi-angle [alpha] of the footing and appears in the expression of Equation A12.

Experimental and theoretical studies on bearing capacity of conical shell foundations composed of reactive powder concrete

Let [pi]: P[T.sup.*][R.sup.n + 1.sub.2] [right arrow] [R.sup.n + 1.sub.2] be the projective cotangent bundle over an n-dimensional manifold in [R.sup.n + 1.sub.2].

Lightlike hypersurfaces and canal hypersurfaces of Lorentzian surfaces

while the cotangent function in (9) can be approximated as

Ultrasubwavelength ferroelectric leaky wave antenna in a planar substrate-superstrate configuration

[K.sub.d] - the cotangent of mobility curve inclination angle [alpha] in a frequency range of 0-80 Hz:

Non-destructive evaluation of the pull-off adhesion of concrete floor layers using RBF neural network

Among the topics are elusive worldsheet instantons in heterotic string compactifications, the Witten equation and the geometry of the Landau-Ginzburg model, algebraic topological string theory, the fibrancy of symplectic homology in cotangent bundles, and the theory of higher rank stable pairs and virtual localization.

String-math 2011

So, the author begins with the geometrical theory of cotangent bundle (T*M, [pi]*,M), continue with the notion of Hamilton space [H.sup.n](M, H(x,p)), where H : T*M [right arrow] R is a regular Hamiltonian, with the variational problem

Lagrangian and Hamiltonian Geometries. Applications to Analytical Mechanics