length of a vector
61unit vector — noun A vector with length 1 …
62unit vector — u′nit vec tor n. math. phs a vector having a length of one unit • Etymology: 1930–35 …
63radius vector — /ˌreɪdiəs ˈvɛktə/ (say .raydeeuhs vektuh) noun (plural radii vectores /ˌreɪdiaɪ vɛkˈtɔriz/ (say .raydeeuy vek tawreez) or radius vectors) 1. Mathematics the length and direction of the line segment joining a fixed point or origin to a variable… …
64radius vector — noun Date: circa 1753 1. a. the line segment or its length from a fixed point to a variable point b. the linear polar coordinate of a variable point 2. a straight line joining the center of an attracting body (as the sun) with that of a body (as… …
65radius vector — pl. radii vectores /vek tawr eez, tohr /, radius vectors. 1. Math. the length of the line segment joining a fixed point or origin to a given point. 2. Astron. a. the straight line joining two bodies in relative orbital motion, as the line from… …
66radius vector — noun Mathematics a line of variable length extending from a centre to an orbit or other curve …
67radius vector — ra′dius vec′tor n. pl. radii vec•to•res [[t]vɛkˈtɔr iz, ˈtoʊr [/t]] radius vectors 1) math. Math. the length of the line segment joining a fixed point or origin to a given point 2) astron. a) the straight line joining two bodies in relative… …
68Geometric algebra — In mathematical physics, a geometric algebra is a multilinear algebra described technically as a Clifford algebra over a real vector space equipped with a non degenerate quadratic form. Informally, a geometric algebra is a Clifford algebra that… …
69Metric tensor — In the mathematical field of differential geometry, a metric tensor is a type of function defined on a manifold (such as a surface in space) which takes as input a pair of tangent vectors v and w and produces a real number (scalar) g(v,w) in a… …
70mechanics — /meuh kan iks/, n. 1. (used with a sing. v.) the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. 2. (used with a sing. v.) the theoretical and practical application …
