vector direction
81Rotation operator (vector space) — This article derives the main properties of rotations in 3 dimensional space.The three Euler rotations is an obvious way to bring a rigid body into any desired orientation bysequentially making rotations about axis fixed relative the body. But it …
82Scalar-vector-tensor decomposition — In cosmological perturbation theory, the scalar vector tensor decomposition is a decomposition of the most general linearized s of the Friedmann Robertson Walker metric into components according to their transformations under spatial rotations.… …
83P-vector — In differential geometry, a p vector is the tensor obtained by taking linear combinations of the wedge product of p tangent vectors, for some integer p ≥ 1. It is the dual concept to a p form.For p = 2 and 3, these are often called respectively… …
84wave vector — noun A vector whose direction is that of the direction of propagation of a wave, and whose magnitude is inversely proportional to its wavelength …
85Tangent vector — A tangent vector is a vector that follows the direction of a curve or a surface at a given point.* Differential geometry of curves, description in the context of curves in R n . * Tangent space, a general notion in the theory of manifolds …
86Descent direction — In optimization, a descent direction is a vector that, in the sense below, moves us closer towards a local minimum of our objective function . Suppose we are computing by an iterative method, such as line search. We define a descent direction at… …
87Advanced combat direction system — The Advanced Combat Direction System is a centralized, automated command and control system, collecting and correlating combat information. It upgrades the Naval Tactical Data System (NTDS) for aircraft carriers and large deck amphibious ships. A …
88Burgers vector — noun A mathematical vector that represents the magnitude and direction of the distortion in a dislocation in a crystal lattice …
89Burgers vector — a vector that denotes the magnitude and direction of lattice distortion associated with a dislocation …
90free vector — noun Mathematics a vector of which only the magnitude and direction are specified, not the position or line of action …
