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Topics referred to by the same term
R2, R02, R.II, R.2 or R-2 may refer to: R2 (Rock'n'Reel), a British music magazine R2-D2, a character from Star Wars films and books, nickname R2 Code
R2
Fictional character from Star Wars
R2-D2 (/ˌɑːr.tuːˈdiːtuː/) or Artoo-Detoo is a fictional robot character in the Star Wars franchise created by George Lucas. He has appeared in ten of the
R2-D2
Indicator for how well data points fit a line or curve
In statistics, the coefficient of determination, denoted R2 or r2 and pronounced "R squared", is the proportion of the variation in the dependent variable
Coefficient_of_determination
American electric mid-size SUV
Rivian R2 is a battery electric mid-size SUV being produced by American electric vehicle manufacturer Rivian. It is the second Rivian SUV. The Rivian R2 was
Rivian_R2
Japanese anime television series
2006 to July 2007. Its sequel series, Code Geass: Lelouch of the Rebellion R2, ran as a simulcast on MBS and TBS from April to September 2008. The series
Code_Geass
Scientology slang for murder or suicide by gun
R2-45 is Scientology slang for murder or suicide by gun. Scientology founder L. Ron Hubbard described it as "an enormously effective process for exteriorization
R2-45
followed by Code Geass: Lelouch of the Rebellion R2 (コードギアス 反逆のルルーシュ R2, Kōdo Giasu: Hangyaku no Rurūshu R2) which aired on April 6, 2008, and was broadcast
List_of_Code_Geass_episodes
Motor vehicle
The Subaru R2 is a kei car produced and sold in Japan by Fuji Heavy Industries from 2003 to 2010. Its name was inspired by the Subaru R-2, produced from
Subaru_R2
Anime series
Code Geass: Lelouch of the Rebellion R2 (Japanese: コードギアス 反逆のルルーシュ R2, Hepburn: Kōdo Giasu: Hangyaku no Rurūshu R2), is produced by Sunrise, Mainichi Broadcasting
List of Code Geass season 2 episodes
List_of_Code_Geass_season_2_episodes
English actor and musician (1934–2016)
2016) was a British actor, comedian and musician. He portrayed the character R2-D2 in the Star Wars franchise and also appeared in The Elephant Man, Time
Kenny_Baker_(English_actor)
Version of Windows Server, released in 2013
Windows Server 2012 R2, codenamed "Windows Server Blue", is the tenth major version of the Windows NT operating system produced by Microsoft to be released
Windows_Server_2012_R2
Group of server operating systems by Microsoft
while Windows Server 2008 R2 is based on Windows 7. Windows Server 2012 is based on Windows 8, while Windows Server 2012 R2 is based on Windows 8.1. These
Windows_Server
Human Y-chromosome DNA haplogroup
Haplogroup R2, or R-M479, is a Y-chromosome haplogroup characterised by genetic marker M479. It is one of two primary descendants of Haplogroup R (R-M207)
Haplogroup_R2
Version of Windows Server, released in 2009
Windows Server 2008 R2, codenamed "Windows Server 7" is the eighth major version of the Windows NT operating system produced by Microsoft to be released
Windows_Server_2008_R2
Science fiction television series (1997–2007)
Stargate SG-1 (abbreviated as SG-1) is a military science fiction adventure television series within Metro-Goldwyn-Mayer's Stargate franchise. The show
Stargate_SG-1
doctoral universities: R1: Doctoral Universities – Very high research activity R2: Doctoral Universities – High research activity D/PU: Doctoral/Professional
List of research universities in the United States
List_of_research_universities_in_the_United_States
Formula One racing car
The Jaguar R2 was the car with which the Jaguar team competed in the 2001 Formula One World Championship. It was driven by Eddie Irvine, who was in his
Jaguar_R2
Characters in the 1977–1983 movie trilogy
that Daniels was better for the part. Richard Dreyfuss was also considered. R2-D2, or Artoo Detoo, is an astromech droid and C-3PO's companion, who is carrying
List of Star Wars original trilogy characters
List_of_Star_Wars_original_trilogy_characters
RNA family
The R2 RNA element is a non-long terminal repeat (non-LTR) retrotransposable element that inserts at a specific site in the 28S ribosomal RNA (rRNA) genes
R2_RNA_element
Native hypervisor by Microsoft
monitoring of the Hyper-V Server. Hyper-V Server 2008 R2 (an edition of Windows Server 2008 R2) was made available in September 2009 and includes Windows
Hyper-V
Signalling System R2 is a signalling protocol for telecommunications that was in use from the 1960s mostly in Europe, and later also in Latin America,
Signalling_System_R2
Long-period comet
C/2025 R2 (SWAN), formerly known as SWAN25B, is a long-period comet discovered on 11 September 2025 by Vladimir Bezugly through SWAN imagery. The comet
C/2025_R2_(SWAN)
Investigational radiopharmaceutical
225Ac-PSMA-R2 is an investigational radiopharmaceutical developed by Novartis for the treatment of metastatic hormone-sensitive prostate cancer (mHSPC)
225Ac-PSMA-R2
Commuter rail line in Barcelona, Spain
The R2 is a line of Rodalies de Catalunya's Barcelona commuter rail service, operated by Renfe Operadora and the Generalitat de Catalunya government. It
R2_(Rodalies_de_Catalunya)
Czech supermini car
The Škoda Fabia is a series of passenger cars produced by Czech manufacturer Škoda Auto since 1999. It is the successor of the Škoda Felicia, which was
Škoda_Fabia
Version of Windows Server, released in 2003
predecessor to Windows Server 2008. An updated version, Windows Server 2003 R2, was released to manufacturing on December 6, 2005, and generally available
Windows_Server_2003
Statistical measure of fit
variable is nominal or ordinal such that the coefficient of determination R2 cannot be applied as a measure for goodness of fit and when a likelihood function
Pseudo-R-squared
Humanoid robot
Earth orbit", and R2 will provide performance data about how a robot may work side-by-side with astronauts. The latest Robonaut version, R2, was delivered
Robonaut
Robots in the Star Wars franchise
hyperdrive to plot a safe course when traveling at faster-than-light speeds. R2-D2 is an astromech droid introduced in 1977's Star Wars and featured in all
Droid_(Star_Wars)
American-Canadian animated television series
Adventures of R2-D2 and C-3PO is a 1985 animated television series spin off from the original Star Wars trilogy. It focuses on the exploits of droids R2-D2 and
Star_Wars:_Droids
School district in Colorado, United States
The Thompson School District is located in Loveland, Colorado and covers territory in Loveland, Berthoud, a southern section of Fort Collins and portions
Thompson_School_District
1995 video game
Rendering Ranger: R2 is a 1995 side scrolling action video game developed by Rainbow Arts and published by Virgin Interactive for the Super Famicom. It
Rendering_Ranger:_R2
Public university in Huntington, West Virginia, US
fourth chief justice of the United States. The university is classified among "R2: Doctoral Universities – High research activity". Marshall University was
Marshall_University
Type of motorcycle
The BMW R2 was a 198 cc overhead valve single-cylinder motorcycle produced by BMW between 1931 and 1936, the smallest motorcycle ever to enter series production
BMW_R2
System to measure electrical resistance
resistance to be measured. R1, R2, and R3 are resistors of known resistance and the resistance of R2 is adjustable. The resistance R2 is adjusted until the bridge
Wheatstone_bridge
Motor vehicle
(Source: Opel Magazine) Opel Adam R2 (rally car) Opel presented the study of the Adam R2 for the FIA Rally Regulations R2 at the 2013 Geneva Motor Show in
Opel_Adam
Version of Windows Server, released in 2012
Windows based on Windows 8 and succeeds the Windows 7-based Windows Server 2008 R2, released nearly three years earlier. Three pre-release versions, a developer
Windows_Server_2012
2009 Microsoft operating system version
three years earlier. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time. It sold over 630 million copies before it
Windows_7
Version of Windows Server, released in 2008
Server 2008 is the successor to Windows Server 2003 R2 and the predecessor to Windows Server 2008 R2. It removed support for computers without ACPI, and
Windows_Server_2008
Pack 1 or higher), Vista, Server 2008, 7, Server 2008 R2, 8, Server 2012, 8.1, Server 2012 R2, 10, and Server 2016. An unofficial backport for Windows
.NET Framework version history
.NET_Framework_version_history
Human blood group system involving 49 blood antigens
Rh haplotype notation Fisher–Race Wiener Dce R0 DCe R1 DcE R2 DCE RZ dce r dCe r' dcE r″ dCE ry
Rh_blood_group_system
Book by Brian Kernighan and Dennis Ritchie
The C Programming Language (sometimes termed K&R, after its authors' initials) is a computer programming book written by Brian Kernighan and Dennis Ritchie
The_C_Programming_Language
Country in Southern Africa
industrialisation programme. The IRP, representing an estimated investment of R2.2 trillion (approximately US$130 billion), aims to strengthen energy security
South_Africa
CPU socket created by Intel
enthusiast class) and C600-series (EP – Xeon class) chipsets. LGA 2011-1 (Socket R2), an updated generation of the socket and the successor of LGA 1567, is used
LGA_2011
English actor and mime artist (born 1946)
character, however Ralph McQuarrie's first concept painting of C-3PO and R2-D2 on Tatooine evoked empathy from him. For nearly 50 years, Daniels has held
Anthony_Daniels
First working programmable, fully automatic digital computer
memory location into R2. Arithmetic instructions would operate on the contents of R1 and R2, leaving the result in R1, and clearing R2; the next load operation
Z3_(computer)
portrayed by Anthony Daniels, reprising his role from the original trilogy. R2-D2 is an astromech droid serving the government of Naboo and later as Anakin's
List of Star Wars prequel trilogy characters
List_of_Star_Wars_prequel_trilogy_characters
Carbon monoxide-rich comet
C/2016 R2 (PanSTARRS), or simply C/2016 R2, is an unusual long-period comet that is extremely rich in carbon monoxide and nitrogen, but contains very
C/2016_R2_(PanSTARRS)
American computer hardware subsidiary of Dell Inc.
2016, Alienware announced the second rendition of the Alpha, the Alpha R2. The R2 adds 6th generation Intel processors, a choice of either AMD's Radeon
Alienware
2014 Android Wear-based smartwatch
The LG G Watch R (model W110) is an Android Wear-based smartwatch announced and released by LG and Google on October 25, 2014. It is the second round-faced
LG_G_Watch_R
Operating system for high performance computing
Windows HPC Server 2008 R2, also known as Windows Server 2008 R2 HPC Edition (codenamed Windows 7 Server) based on Windows Server 2008 R2, was released on 20
Windows_HPC_Server_2008
Example of topological space
given to the plane R2 with an extra point, say 0*, added. In this case, the double origin topology gives a topology on the set X = R2 ⊔ {0*}, where ⊔ denotes
Double_origin_topology
Motor vehicle
L TU3 I4 1.4 L ET3 I4 1.4 L DV4 HDi I4 1.6 L TU5 I4 1.6 L TU5 JP4S I4 (C2-R2 Max) 1.6 L DV6 HDi I4 Transmission 5-speed automated manual transmission 5-speed
Citroën_C2
SEPTA Regional Rail service
City stations the terminus for all lines. This also ended the combined R2 Newark/R2 Warminster service. SEPTA activated positive train control on the Wilmington/Newark
Wilmington/Newark_Line
Eleventh major version of Windows Server, released in 2024
in future releases. Upgrades are also available from Windows Server 2012 R2 to Windows Server 2022. Windows Server 2025 was revealed to be the name of
Windows_Server_2025
Version of Windows Server, released in 2018
Windows Server 2019 is the twelfth major version of the Windows NT operating system produced by Microsoft to be released under the Windows Server brand
Windows_Server_2019
Mathematical model of the physical space
Euclidean geometry is a mathematical system attributed to Euclid, an ancient Greek mathematician, which he described in his textbook on geometry, Elements
Euclidean_geometry
Chinese car marque
the iQ officially kicked off the brand in August 2018. The third Ora model R2 (later White Cat) was first previewed in June 2019, with production officially
Ora_(marque)
Dutch and Belgian racing driver (born 1997)
KF1 SUZ QH1 31 SUZ R1 13 SUZ R2 4 SUZ QH2 2 SUZ R3 3 SUZ R4 Ret MAC Q1 1 MAC R1 2 MAC R2 Ret MAC Q2 2 MAC R1 17 MAC R2 Ret 8th 52 2013 CRG KF PFI QH
Max_Verstappen
Robot character from the Star Wars universe
droids the "comic aspect" of the original Star Wars film, and that C-3PO and R2-D2 were designed to resemble the comedy duo Laurel and Hardy. Filming Star
C-3PO
Molecular cloud complex in the constellation Monoceros
The Monoceros R2 Molecular Cloud Complex, also known as the Monoceros R2 Molecular Cloud, is a predominantly unilluminated giant molecular cloud, located
Monoceros_R2
nacelle. Heated air was drawn from the engines to warm the passenger cabins. R2 - early version with two Rolls-Royce Condor III inline engines (three built)
Dornier_Do_R_Superwal
left R2-5D Keep right R2-6I Keep left R2-6D Keep right R2-7 No entry R2-8 No U-turn R2-9I No left turn R2-9D No right turn R2-10 No left or U-turn R2-11
Road_signs_in_Ecuador
2008 R2 SP1". Microsoft. Retrieved September 19, 2011. "Microsoft® SQL Server® 2008 R2 SP2". Microsoft. Retrieved July 31, 2012. "SQL Server 2008 R2 Service
History of Microsoft SQL Server
History_of_Microsoft_SQL_Server
R33 Ark. Running R32 Alaska Running R31 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R20 R19 R18 R17 R16 R15 R14 R13 R12 R11 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10
2026 United States Senate elections
2026_United_States_Senate_elections
Types of electrical circuits
Two-terminal components and electrical networks can be connected in series or parallel. The resulting electrical network will have two terminals, and itself
Series_and_parallel_circuits
Japanese imaging and electronics company
Ricoh Caplio R1v (5-megapixel, also available as Rollei DR5) Ricoh Caplio R2 (5-megapixel, larger screen, no viewfinder) Ricoh Caplio R3 (5-megapixel,
Ricoh
Fictional character from Code Geass
Lelouch of the Rebellion R2 (May 4, 2008) ”The C’s World.” Episode 15 of Season 2 of Code Geass: Lelouch of the Rebellion R2 (July 20, 2008) ”Zero.” Episode
C.C._(Code_Geass)
Public university in Stephenville, Texas, US
enrolled over 15,000 students in the fall of 2022. It is classified among "R2: Doctoral Universities – High research activity". John Tarleton College was
Tarleton_State_University
New Zealand racing driver (born 1989)
38 39 Position Points 2007 Team Kiwi Racing 021 Ford BF Falcon ADE R1 ADE R2 BAR R3 BAR R4 BAR R5 PUK R6 PUK R7 PUK R8 WIN R9 WIN R10 WIN R11 EAS R12 EAS
Shane_van_Gisbergen
Former attraction at Disney theme parks
attraction featured new character Captain RX-24 (Rex) along with series regulars R2-D2 and C-3PO. At its debut at Disneyland in 1987, it was the first attraction
Star_Tours
Web browser made by Mozilla
release includes the first x64 build. It required Windows 7 or Server 2008 R2. Starting from version 49.0, Firefox for Windows requires and uses the SSE2
Firefox
Human Y-chromosome DNA haplogroup
Afghanistan – may therefore belong to R2.) It is possible that neither of the primary branches of R-M207, namely R1 (R-M173) and R2 (R-M479) still exist in their
Haplogroup_R_(Y-DNA)
Road in Zimbabwe
The R2 Road is an international road in Zimbabwe that runs from Harare (Capital of Zimbabwe), through Bulawayo, to Plumtree border post. It is a combination
R2_road_(Zimbabwe)
Computer operating system
released in April 2003. It was followed in March 2006, by Windows Server 2003 R2. After a lengthy development process, Windows Vista was released only for
Microsoft_Windows
Christian university in Abilene, Texas, US
Texas, United States. It is classified by the Carnegie Foundation as an R2 (High Research Spending and Doctorate Production) institution. It was founded
Abilene_Christian_University
Family of programming languages
Professor Akinori Yonezawa of Tokyo Institute of Technology in 1988. ABCL/R2 is a second generation version of ABCL/R, designed for the Hybrid Group Architecture
Actor-Based Concurrent Language
Actor-Based_Concurrent_Language
External facility on the ISS dedicated to astrobiology experiments
experiments completed between 2008 and 2015: EXPOSE-E, EXPOSE-R and EXPOSE-R2. The EXPOSE-E was launched on 7 February 2008 on board the Space Shuttle Atlantis
EXPOSE
Two tower defense video games by Square Enix
Archer jobs. The Wii version of Crystal Defenders is divided into R1 and R2 chapters and offers a new ranking system via Nintendo Wi-Fi Connection. The
Crystal_Defenders
Military plane
The Fiat R.2 was a reconnaissance aircraft produced in Italy shortly after World War I, and the first aircraft to be marketed under the Fiat brand, (previous
Fiat_R.2
Annual softball tournament
R2 R2 SR R2 W5 R3 Louisiana Sun Belt 33 19 6 - R2 R3 R2 W3 R2 W5 W5 R2 R2 R• R2 R• W7 R2 R3 R2 R• W5 R2 SR R2 SR SR W7 SR SR R2 R2 R2 R2 R2 SR R2
NCAA Division I softball tournament
NCAA_Division_I_softball_tournament
Web browser by Microsoft for Windows released in 2013
RT 8.1 and Windows Server 2012 R2 on October 17, 2013, and was later released for Windows 7 and Windows Server 2008 R2 on November 7, 2013. It is the
Internet_Explorer_11
2009 film by Peder Pedersen
Lego Star Wars: The Quest for R2-D2 is a 2009 comedy short film directed by Peder Pedersen and produced by M2Film for Lego and Cartoon Network in collaboration
Lego Star Wars: The Quest for R2-D2
Lego_Star_Wars:_The_Quest_for_R2-D2
Electronic circuit used to implement two-state devices
{\displaystyle \beta ={R2 \over R1+R2}} If V sat >> V d {\displaystyle V_{\text{sat}}>>V_{d}} and R 1 = R 2 {\displaystyle R1=R2} so that β = 0.5 {\displaystyle
Multivibrator
American media franchise
original trilogy), Luke's sister (not yet determined to be Leia), Han, Leia, R2-D2 and C-3PO. However, after beginning work on the prequel trilogy, Lucas
Star_Wars
American rock musician (1941–1959)
70178 The Ritchie Valens Story Released: 1993 Format: CD Label: Del-Fi/Rhino R2 71414 Features greatest hits, unreleased demos and 21-minute narrative of
Ritchie_Valens
Intel CPU socket
support Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows 8.1 and Windows Server 2012 R2 and the earliest two Intel sockets to
LGA_2066
Expressway in Slovakia
R2 is an expressway (Slovak: rýchlostná cesta) in Slovakia, which begins near Trenčín and ends near Košice. It passes Bánovce nad Bebravou, Prievidza,
R2_expressway_(Slovakia)
Chinese artificial intelligence company
similar way as step 3. They were not trained with RL. There were reports that R2, the intended successor to R1, was originally planned for release in early
DeepSeek
Family of cameras by Cosina Voigtländer
navy blue or olive (at a higher price and perhaps only in Japan). The Bessa R2 replaced the Bessa-R in 2002. It was an updated version, with a Leica M-mount
35_mm_Bessa
connects to the Internet. DirectAccess was introduced in Windows Server 2008 R2, providing this service to Windows 7 and Windows 8 "Enterprise" edition clients
DirectAccess
SEPTA Regional Rail service
passengers and 6 crew members. Beginning in 1984 the route was designated R2 Warminster as part of SEPTA's diametrical reorganization of its lines. Warminster
Warminster_Line
Non-periodic comet
Comet ATLAS, formal designation C/2022 R2, is a non-periodic comet with a very small minimum orbit intersection distance with Earth, only about 0.045 AU
C/2022_R2_(ATLAS)
Scottish actor (born 1959)
for R2-D2 in Star Wars: The Force Awakens, although filming clashed with Pan at the time and Vee was not used. In November 2015, he was cast as R2-D2 in
Jimmy_Vee
Irish rally driver (born 1999)
McErlean joined the British Rally Championship at the wheel of a Citroën C2 R2 Max, though reliability issues plagued his campaign and he finished ninth
Josh_McErlean
Private university in Orange, California, US
States. Encompassing eleven colleges, the university is classified among "R2: Doctoral Universities – High research activity". The school maintains its
Chapman_University
1977 film by George Lucas
While Luke is cleaning R2-D2, he discovers a recording of Leia requesting help from a former ally named Obi-Wan Kenobi. R2-D2 goes missing, and while
Star_Wars_(film)
Mathematical cricket match scoring formulation
Standard Edition If R2 < R1, reduce Team 2's target score in proportion to the reduction in total resources, i.e. S × R2/R1. If R2 = R1, no adjustment
Duckworth–Lewis–Stern_method
FIA rally car formula
cars was taken from R2 class of Group R and tweaked with the defining ruleset interchanging the terms, this meant that any existing R2 car homologated or
Group_Rally4
1st episode of the 6th season of Family Guy
through R2, but encounters so many complications that R2 offers to deliver the message himself. Leia is captured by Darth Vader (Stewie) while R2 and 3PO
Blue_Harvest
R2
R2
R2
R2
Boy/Male
Hindu, Indian
Lord Shiva
Surname or Lastname
English
English : habitational name, probably from the village of Abdon in Shropshire, named from the Old English personal name Abba + Old English tūn ‘settlement’.
Girl/Female
Arabic, Muslim
Green; Fresh
Surname or Lastname
English
English : possibly a habitational name from Eridge in East Sussex, so named from Old English earn ‘eagle’ + hrycg ‘ridge’ or an altered form of Harwich, a habitational name from Old English here ‘army’ + wīc ‘dwelling’, ‘camp’
Surname or Lastname
Americanized spelling of Jansen, Janssen, and Jansson.English
Americanized spelling of Jansen, Janssen, and Jansson.English : patronymic from the personal name Jan, a medieval form of John.
Boy/Male
American, Christian, German, Hebrew, Latin
Dark Skinned; Saviour; Taken from Water; Drawn out
Biblical
a female roe-deer
Boy/Male
Hindu, Indian, Tamil
Conqueror
Girl/Female
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
River Yamuna
Boy/Male
Teutonic German
Brave.
R2
R2
R2
R2
R2
n.
A spiral whose polar equation is r2/ = a; that is, a curve the square of whose radius vector varies inversely as the angle which the radius vector makes with a given line.
n.
A quantity which may increase or decrease; a quantity which admits of an infinite number of values in the same expression; a variable quantity; as, in the equation x2 - y2 = R2, x and y are variables.