: Matemáticas: direction cosine

geometry > analytic geometry > direction cosine

algebra > linear algebra > vector space > vector > direction cosine

mathematical physics > vector calculus > vector > direction cosine

mathematical analysis > calculus > vector calculus > vector > direction cosine

geometry > differential geometry > vector calculus > vector > direction cosine

direction cosine

In analytic geometry, the direction cosines (or directional cosines) of a vector are the cosines of the angles between the vector and the three positive coordinate axes. Equivalently, they are the contributions of each component of the basis to a unit vector in that direction.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Direction_cosine)

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