Index

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{{wiktionary|Index|index|indexes|indice|indices}}

Index ({{plural form}}: indexes or indices) may refer to:

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Arts, entertainment, and media

=Fictional entities=

=Periodicals and news portals=

=Other arts, entertainment and media=

Business enterprises and events

Finance

Places in the United States

Publishing and library studies

Science, technology, and mathematics

=Computer science=

=Economics=

  • Index (economics), a single number calculated from an array of prices and quantities
  • Price index, a typical price for some good or service

=Mathematics and statistics=

  • 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 ==

== Analysis ==

  • 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

== Number theory ==

==Statistics==

=Other uses in science and technology=

  • Dental indices, standardized scoring systems for tooth problems
  • Indexicality, in linguistics, the phenomenon of a sign pointing to some object in the context in which it occurs
  • Indexing (motion), in mechanical engineering and machining, movement to a precisely known location
  • Refractive index, a measurement of how light propagates through a material
  • Valve Index, a virtual reality headset

Other uses

See also

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