Dual in-line- package

Dual or Duals may refer to:

Paired/two things

* Dual (mathematics), a notion of paired concepts that mirror one another
** Dual (category theory), a formalization of mathematical duality
*** see more cases in :Duality theories
* Dual number, a number system used in automatic differentiation
* Dual (grammatical number), a grammatical category used in some languages
* Dual county, a Gaelic games county which competes in both Gaelic football and hurling
* Dual diagnosis, a psychiatric diagnosis of co-occurrence of substance abuse and a mental problem
* Dual fertilization, simultaneous application of a P-type and N-type fertilizer
* Dual impedance, electrical circuits that are the dual of each other
* Dual SIM cellphone supporting use of two SIMs
* Aerochute International Dual a two-seat Australian powered parachute design

Acronyms and other uses

* Dual (brand), a manufacturer of Hifi equipment
* DUAL (cognitive architecture), an artificial intelligence design model
* DUAL algorithm, or diffusing update algorithm, used to update Internet protocol routing tables
* Dual language, alternative spelling of the Australian Aboriginal Dhuwal language
* DUAL table, a special one-row and one-column database table
* Dual-Ghia, US-brand of luxury-car of the late 1950s

Media

* ''Dual'' (2008 film), a 2008 western drama film
* ''Dual'' (2022 film), a 2022 science fiction thriller film
* "Dual" (''Heroes''), an episode of ''Heroes''
* Dual! Parallel Trouble Adventure, an anime series
* ''Dual'' (album), an album of traditional Scottish and Irish music recorded by Éamonn Doorley, Muireann Nic Amhlaoibh, Julie Fowlis and Ross Martin, released 2008
* ''Dual'' (EP), a 2013 EP by Sampha
* '' Duals'', an album by U2
* The Duals, American duo

See also

* Duality (disambiguation)
* Duel (disambiguation), a homonym
*
*
* Double (disambiguation)
* Duo (disambiguation)
* Pair (disambiguation)
* Twin (disambiguation)

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