Dual
Template:Sister project Dual or Duals may refer to: Template:TOCright
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 Category:Duality theories
- Dual (category theory), a formalization of mathematical duality
- 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