**Signed distance function** — In mathematics and applications, the signed distance function of a set S in a metric space determines how close a given point x is to the boundary of S , with that function having positive values at points x inside S , it decreases in value as x… … Wikipedia

**Distance** — This article is about distance in the mathematical or physical sense. For other senses of the term, see distance (disambiguation). Proximity redirects here. For the 2001 film, see Proximity (film). Distance (or farness) is a numerical description … Wikipedia

**Distance measuring equipment** — D VOR/DME ground station DME by itself Distance measuring equipment (DME) is a t … Wikipedia

**Distance (graph theory)** — Geodesic distance redirects here. For distances on the surface of the Earth, see Great circle distance. In the mathematical field of graph theory, the distance between two vertices in a graph is the number of edges in a shortest path connecting… … Wikipedia

**Distance-bounding protocol** — Distance bounding protocols are cryptographic protocols that enable a verifier V to establish an upper bound on the physical distance to a prover P. They are based on timing the delay between sending out a challenge bits and receiving back the… … Wikipedia

**Distance geometry** — is the characterization and study of sets of points based only on given values of the distances between member pairs. Therefore distance geometry has immediate relevance where distance values are determined or considered, such as in surveying,… … Wikipedia

**Distance correlation** — In statistics and in probability theory, distance correlation is a measure of statistical dependence between two random variables or two random vectors of arbitrary, not necessarily equal dimension. Its important property is that this measure of… … Wikipedia

**Distance of closest approach of ellipses and ellipsoids** — The distance of closest approach of two objects is the distance between their centers when they are externally tangent. The objects may be geometric shapes or physical particles with well defined boundaries. The distance of closest approach is… … Wikipedia

**Distance measures (cosmology)** — Physical cosmology Universe · Big Bang … Wikipedia

**Distance-regular graph** — Graph families defined by their automorphisms distance transitive distance regular strongly regular … Wikipedia