cosine law
1cosine 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 …
2cosine 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… …
3cosine law — Optics. See Lambert s law. * * * …
4Lambert'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… …
5Lambert’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 …
6Lambert's cosine law — Lam·bert s cosine law (lahmґbərts) [Johann Heinrich Lambert, German mathematician and physicist, 1728–1777] see under law …
7Lambert's cosine law — the intensity of radiation on an absorbing surface varies as the cosine of the angle of incidence for parallel rays …
8Law 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 …
9law 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 …
10Law 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… …
