Index

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Index may refer to:

Arts, entertainment, and media[edit]

Fictional entities[edit]

Periodicals and news portals[edit]

Other arts, entertainment and media[edit]

Business enterprises and events[edit]

Finance[edit]

Places in the United States[edit]

Publishing and library studies[edit]

Science, technology, and mathematics[edit]

Computer science[edit]

Economics[edit]

Mathematics and statistics[edit]

  • Index, a number or other symbol that specifies an element of an indexed family or set
  • Index, an element of an index set
  • Index, the label of a summand in Σ-notation of a summation

Algebra[edit]

Analysis[edit]

  • Index, the winding number of an oriented closed curve on a surface relative to a point on that surface
  • Diversity index, a measure of distribution or variety in fields such as ecology or information science
  • Index of a vector field, an integer that helps to describe the behaviour of a vector field around an isolated zero
  • Indexicality, in linguistics, the phenomenon of a sign pointing to some object in the context in which it occurs

Number theory[edit]

Statistics[edit]

Other uses in science and technology[edit]

  • Dental indices, standardized scoring systems for tooth problems
  • Indexing (motion), in mechanical engineering and machining, movement to a precisely known location
  • Refractive index, a measurement of how light propagates through a material

Other uses[edit]

See also[edit]