# cosine law

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cosine law
See Lambert's law.

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Universalium. 2010.

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• cosine law — Lamberto kosinuso dėsnis statusas T sritis fizika atitikmenys: angl. cosine law; Lambert’s cosine law vok. Lamberts Kosinusgesetz, n; Lambertsches Kosinusgesetz, n rus. закон косинуса, m; закон Ламберта, m pranc. loi de Lambert, f; loi du cosinus …   Fizikos terminų žodynas

• cosine law — noun : either of two laws of radiation: a. : the radiant flux emitted in a given direction from a given small area of a perfectly diffusing surface varies as the cosine of the angle of emission b. : the irradiation by parallel rays falling on a… …   Useful english dictionary

• Lambert's cosine law — See also: Lambertian reflectance In optics, Lambert s cosine law says that the radiant intensity observed from a Lambertian surface or a Lambertian radiator is directly proportional to the cosine of the angle θ between the observer s line of… …   Wikipedia

• Lambert’s cosine law — Lamberto kosinuso dėsnis statusas T sritis fizika atitikmenys: angl. cosine law; Lambert’s cosine law vok. Lamberts Kosinusgesetz, n; Lambertsches Kosinusgesetz, n rus. закон косинуса, m; закон Ламберта, m pranc. loi de Lambert, f; loi du cosinus …   Fizikos terminų žodynas

• Lambert's cosine law — Lam·bert s cosine law (lahmґbərts) [Johann Heinrich Lambert, German mathematician and physicist, 1728â€“1777] see under law …   Medical dictionary

• Lambert's cosine law — the intensity of radiation on an absorbing surface varies as the cosine of the angle of incidence for parallel rays …   Medical dictionary

• Law of cosines — This article is about the law of cosines in Euclidean geometry. For the cosine law of optics, see Lambert s cosine law. Figure 1 – A triangle. The angles α, β, and γ are respectively opposite the sides a, b, and c …   Wikipedia

• law of cosines — 1. : a law in trigonometry: the square of a side of a plane triangle equals the sum of the squares of the remaining sides minus twice the product of those sides and the cosine of the angle between them 2. : a law in trigonometry: the cosine of an …   Useful english dictionary

• Law of cosines (spherical) — In spherical trigonometry, the law of cosines (also called the cosine rule for sides) is a theorem relating the sides and angles of spherical triangles, analogous to the ordinary law of cosines from plane trigonometry.Given a unit sphere, a… …   Wikipedia

• law of cosines — Trigonom. 1. a law stating that the square of a side of a plane triangle is equal to the sum of the squares of the other two sides minus twice the product of the other sides multiplied by the cosine of the angle between them. 2. a law stating… …   Universalium