Double, The Double or Dubble may refer to:

Mathematics and computing

Multiplication Multiplication is one of the four elementary mathematical operations of arithmetic, with the other ones being addition, subtraction, and division (mathematics), division. The result of a multiplication operation is called a ''Product (mathem ...

by 2 *

Double precision Double-precision floating-point format (sometimes called FP64 or float64) is a floating-point arithmetic, floating-point computer number format, number format, usually occupying 64 Bit, bits in computer memory; it represents a wide range of numeri ...

, a floating-point representation of numbers that is typically 64 bits in length * A

double number In algebra, a split-complex number (or hyperbolic number, also perplex number, double number) is based on a hyperbolic unit satisfying j^2=1, where j \neq \pm 1. A split-complex number has two real number components and , and is written z=x+yj ...

of the form

x+yj

, where

j^2=+1

* A 2-

tuple In mathematics, a tuple is a finite sequence or ''ordered list'' of numbers or, more generally, mathematical objects, which are called the ''elements'' of the tuple. An -tuple is a tuple of elements, where is a non-negative integer. There is o ...

, or ordered list of two elements, commonly called an

ordered pair In mathematics, an ordered pair, denoted (''a'', ''b''), is a pair of objects in which their order is significant. The ordered pair (''a'', ''b'') is different from the ordered pair (''b'', ''a''), unless ''a'' = ''b''. In contrast, the '' unord ...

, denoted

(a,b)

* Double (manifold), in topology

Food and drink

* A drink order of two shots of distilled beverage, hard liquor in one glass * A "double decker", a hamburger with two patties in a single bun

Games

* Double, action in games whereby a competitor raises the stakes ** , in contract bridge ** Doubling cube, in backgammon ** Glossary of blackjack terms#D, Double, doubling a blackjack bet in a favorable situation ** Glossary of bets offered by UK bookmakers#Double, Double, a bet offered by UK bookmakers which combines two selections * Double, villain in the video game ''Mega Man X4'' * A kart racing game ''Mario Kart: Double Dash'' * An arcade action game ''Double Dragon''

Sports

* Double (association football), the act of a winning a division and primary cup competition in the same season * Double (baseball), a two-base hit in baseball ** The Double (Seattle Mariners), Edgar Martinez's walk-off double in Game 5 of the 1995 American League Division Series * Double (cricket), the feat of scoring a thousand first-class runs and taking a hundred first-class wickets in a single season * Double (volleyball), scoring ten or more in a statistical category (aces, kills, blocks, digs, or assists) in a single match * Double (Gaelic games), the act of winning the All-Ireland Senior Football Championship and the All-Ireland Senior Hurling Championship in the same year * Double (rugby league), winning the Super League and Challenge Cup in one season * Double-double (basketball), accumulating ten or more in two key statistical categories – points, rebounds, assists, steals, and blocked shots – in a single game * Double Duty, competing in the Indianapolis 500 and Coca-Cola 600 on the same day or weekend.

Entertainment

Literature

* The Double (Dostoevsky novel), ''The Double'' (Dostoevsky novel), an 1846 novella by Fyodor Dostoevsky * The Double (Saramago novel), ''The Double'' (Saramago novel), a 2002 novel by José Saramago * Double (manga), ''Double'' (manga), a 2019 manga series by Ayako Noda

Film and television

* Double (filmmaking), someone who substitutes for the credited actor of a character * The Double (1934 film), ''The Double'' (1934 film), a German crime comedy film * The Double (1963 film), ''The Double'' (1963 film), a British film, part of the ''Edgar Wallace Mysteries'' series * The Double (1971 film), ''The Double'' (1971 film), an Italian film * The Double (2011 film), ''The Double'' (2011 film), a spy thriller film * The Double (2013 film), ''The Double'' (2013 film), a film based on the Dostoevsky novella * The Double (TV series), ''The Double'' (TV series), a 2024 Chinese historical drama * ''Kamen Rider W, Kamen Rider Double'', a 2009–10 Japanese television series ** List of Kamen Rider W characters#Kamen Rider W, Kamen Rider Double (character), the protagonist in a Japanese television series of the same name

Music

* Double album, audio album spanning two units of the primary medium in which it is sold, typically records and CDs * Double variation, a variation form in music * Double (band), a Swiss pop duo * Double (singer) (born 1975), a Japanese R&B singer * Double (Roch Voisine album), ''Double'' (Roch Voisine album) (1990) * Double (Zhao Wei album), ''Double'' (Zhao Wei album) (2005) * Double (BoA song), "Double" (BoA song) (2003) * "Double", a song by Blackbear from ''Digital Druglord'' (2017) * "Double", by Yeat from ''2 Alive'' (2022) * "The Double", an instrumental by Clint Mansell from the ''Black Swan'' Black Swan: Original Motion Picture Soundtrack, soundtrack (2010) * The Concerto for Two Violins (Bach), Double Violin Concerto (Bach) in D minor, BWV 1043, commonly referred to as "The Double" among violinists

People

* Baron Emile Double (1869–1938), vigneron who established the vineyard at Château de Beaupré * François-Joseph Double (1776–1842), French physician * Marie-Louise Double de Saint-Lambert (1891–1974), French philanthropist later known as Countess Lily Pastré * Steve Double (born 1966), British politician and Member of Parliament

Places

* Double (lunar crater), in Mare Tranquillitatis * Double Lake, a lake in Minnesota, US

Other uses

* Double, also called a look-alike or doppelgänger, one person or being that resembles another * Polish Enigma double, a machine replicating the function of Nazi Germany's cipher machines * Double, a former fraction of the Guernsey pound * Double, a former Ranking of liturgical days in the Roman Rite, rank of liturgical feast in the Roman Rite of the Catholic Church * Dubbel, a strong Belgian Trappist beer or, more generally, a strong brown ale * A double, a shorthand for an instance of double tradition, verses duplicated in the Biblical gospels of Gospel of Matthew, Matthew and Gospel of Luke, Luke