cosine of an angle
31arc cosine — Trig. the angle, measured in radians, that has a cosine equal to a given number. Abbr.: arc cos; Symbol: cos 1 Also called inverse cosine. [1905 10] * * * …
32Similarité cosine — Similarité cosinus La similarité cosinus (ou mesure cosinus) permet de calculer la similarité entre deux vecteurs à n dimensions en déterminant l angle entre eux. Cette métrique est fréquemment utilisée en fouille de textes. Soit deux vecteurs A… …
33direction angle — noun : an angle made by a given line with an axis of reference; specifically : one of the three angles made by a straight line with the three axes of a rectangular coordinate system * * * Math. an angle made by a given vector and a coordinate… …
34direction angle — Math. an angle made by a given vector and a coordinate axis. Cf. direction cosine. [1930 35] * * * …
35Trigonometric functions — Cosine redirects here. For the similarity measure, see Cosine similarity. Trigonometry History Usage Functions Generalized Inverse functions …
36List of trigonometric identities — Cosines and sines around the unit circle …
37Law 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 …
38trigonometry — trigonometric /trig euh neuh me trik/, trigonometrical, adj. trigonometrically, adv. /trig euh nom i tree/, n. the branch of mathematics that deals with the relations between the sides and angles of plane or spherical triangles, and the… …
39Triangle — This article is about the basic geometric shape. For other uses, see Triangle (disambiguation). Isosceles and Acute Triangle redirect here. For the trapezoid, see Isosceles trapezoid. For The Welcome to Paradox episode, see List of Welcome to… …
40Unit vector — In mathematics, a unit vector in a normed vector space is a vector (often a spatial vector) whose length is 1 (the unit length). A unit vector is often denoted by a lowercase letter with a hat , like this: (pronounced i hat ). In Euclidean space …
