R2
From Wikipedia, the free encyclopedia
R2 may refer to:
- DVD region code 2
- R2, a symbol for the coefficient of determination of a linear regression
- R2, the two-dimensional vector space of real numbers in mathematics
- R2 (SEPTA), a regional rail line in Philadelphia, Pennsylvania
- R2 signalling, a family of telephony protocols for line and register signalling
- R-2 rocket
- R2-D2, a character from Star Wars films and books
- any astromech droid in the Star Wars fictional universe
- BBC Radio 2, a British radio station
- Haplogroup R2 (Y-DNA)
- Orenburg Airlines by IATA code
- Patricio Rey y sus Redonditos de Ricota or R2, an Argentine rock band
- Subaru R2, a vehicle
- Windows Server 2003 R2
- R2 an abbreviation to the video game Resistance 2
- Code Geass: Lelouch of the Rebellion R2, a 2008 anime series
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