Four square
Four square (also called handball, champ, four squares or box ball) is a global sport played on a square court divided by two perpendicular lines into four identical boxes creating four squares labelled 1–4 or A–D.
Four square is a popula ...
is a ball game.
Four square may also refer to:
Internet and entertainment
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Foursquare City Guide
Foursquare City Guide, commonly known as Foursquare, is a local search-and-discovery mobile app developed by Foursquare (company), Foursquare Labs Inc. The app provides personalized recommendations of places near a user's current location based ...
, a local search and discovery app
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''4 Square'' (game show), a British game show
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''4 Square'' (TV series), a Canadian children's show
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''4 Square'' (pinball), a pinball machine
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Handball (school)
Handball is a children's ball game widely documented in Australian schools, similar to downball. The rules of the game vary considerably across different sites and conditions, but it is generally played on a flat game court with lined square ...
, an Australian ball game
Organizations
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Foursquare (company)
Foursquare Labs Inc., commonly known as Foursquare, is a geolocation technology company and data cloud platform based in the United States. Founded by Dennis Crowley and Naveen Selvadurai in 2009, the company rose to prominence with the launch o ...
, a technology company and the developer of Foursquare City Guide
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Four Square (supermarket)
Four Square is a chain of supermarkets in New Zealand that was founded by John Heaton Barker. It has 230 stores throughout New Zealand, mostly in small towns. Some Four Square supermarkets previously operated in Australia under the name Friendl ...
, a New Zealand supermarket chain
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Four Square Laundry
The Military Reaction Force, Military Reconnaissance Force or Mobile Reconnaissance Force (MRF)Taylor, Peter (2001). ''Brits: The War Against the IRA''. Bloomsbury Publishing. pp. 128–130. was a covert intelligence-gathering and counterinsurgenc ...
, a front company for a British Army intelligence unit in 1970s Belfast
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Foursquare Church
The Foursquare Church is an international Pentecostal Christian denomination founded in 1923 by evangelist Aimee Semple McPherson. It lies within the evangelical tradition. Its headquarters are in Los Angeles, California, United States.
H ...
Other uses
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Four Square (Smithfield, Virginia)
Four Square is a historic home and farm located near Smithfield, Isle of Wight County, Virginia. The original structure was built in 1807, and is a two-story, five-bay, L-shaped frame dwelling. Also on the property are eight contributing domes ...
, U.S., a historic home and farm
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Four square writing method The four square writing method is a way for teaching writing to children in school. While primarily used to teach persuasive writing, it has also been used to help teach deconstruction. The method was developed by Judith S. Gould and Evan Jay Gould ...
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American Foursquare
The American Foursquare (also American Four Square or American 4 Square) is an American house vernacular under the Arts and Crafts style popular from the mid-1890s to the late 1930s. A reaction to the ornate and mass-produced elements of the ...
, an architectural style
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Four Square (cigarette)
Godfrey Phillips India Ltd. (GPI) is a tobacco manufacturer headquartered in India. It is now a part of Modi Enterprises. The company is a major player in the domestic cigarette industry. In 2013-2014 it reported an annual turnover of . It has ...
See also
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Russian four square
Russian four square was started in the Soviet Union. It is a variation of the Russian game Квадрат (square).
General information
Game requirements
To play Russian four square, you need:
*a ball
*4 or more people
*a flat surface (divid ...
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Four-square cipher
The four-square cipher is a manual symmetric encryption technique. It was invented by the French cryptographer Felix Delastelle.
The technique encrypts pairs of letters (''digraphs''), and falls into a category of ciphers known as polygraphic ...
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Lagrange's four-square theorem
Lagrange's four-square theorem, also known as Bachet's conjecture, states that every natural number, nonnegative integer can be represented as a sum of four non-negative integer square number, squares. That is, the squares form an additive basi ...
, stating that any natural number equals the sum of four integers squared
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Jacobi's four-square theorem
In number theory, Jacobi's four-square theorem gives a formula for the number of ways that a given positive integer can be represented as the sum of four squares (of integers).
History
The theorem was proved in 1834 by Carl Gustav Jakob Jacob ...
giving the number of distinct ways an integer can be represented as the sum of four squares
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Euler's four-square identity
In mathematics, Euler's four-square identity says that the product of two numbers, each of which is a sum of four squares, is itself a sum of four squares.
Algebraic identity
For any pair of quadruples from a commutative ring, the following expres ...
or theorem, the product of two numbers, each of which is a sum of four squares, is itself a sum of four squares.
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Ariel Square Four
The Square Four is a motorcycle produced by Ariel Motorcycles, Ariel between 1931 and 1959, designed by Edward Turner (motorcycle designer), Edward Turner, who devised the Square Four engine in 1928. At this time he was looking for work, showing ...
, a motorcycle
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