Four square
Four square is a team sport played among two teams with two players each on a square court divided into four quadrants: A, B, C, and D (usually numbers 3, 4, 2, and 1, respectively, depending on the court.) The square that a player gets to bef ...
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 Labs Inc. The app provides personalized recommendations of places to go near a user's current location based on users' previ ...
, 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 (also four square, ''n''-square - where ''n'' is the number of players -, downball or king pin) is a ball game played in schoolyards in Australia, New Zealand, Fiji, South Africa, China and South East Asia. Unlike most types of handbal ...
, an Australian ball game
Organizations
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Foursquare (company)
Foursquare Labs Inc., commonly known as Foursquare, is an American-based technology company and data cloud platform. The company's location platform is the foundation of several business and consumer products, including the Foursquare City Guide ...
, a technology company and the developer of Foursquare City Guide
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Four Square supermarkets
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Four Square Laundry, a front company for a British Army intelligence unit in 1970s Belfast
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International Church of the Foursquare Gospel
The Foursquare Church is an Evangelical Pentecostal Christian denomination founded in 1923 by preacher Aimee Semple McPherson. The headquarters are in Los Angeles, California, United States.
History
The church has its origins in a vision of ...
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 dome ...
, 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 Gou ...
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American Foursquare, an architectural style
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Four Square (cigarette)
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 thus falls into a category of ciphers known as polygraph ...
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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 can be represented as the sum of four integer squares. That is, the squares form an additive basis of order four.
p = a_0^2 + a_1^2 + a_2^2 + a_ ...
, any natural number equals the sum of four integers squared
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Jacobi's four-square theorem
Jacobi's four-square theorem gives a formula for the number of ways that a given positive integer ''n'' can be represented as the sum of four squares.
History
The theorem was proved in 1834 by Carl Gustav Jakob Jacobi.
Theorem
Two representati ...
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 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 between 1931 and 1959, designed by Edward Turner, who devised the Square Four engine in 1928. At this time he was looking for work, showing drawings of his engine design to motorcycle manufactur ...
, a motorcycle
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