Playfair may refer to:
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Playfair (surname) Playfair is an English surname which came to England after the Norman Conquest. The name derives from the Old French toponymic surname ''Plouvier'' and came from Plouvien, Brittany. Notable people with the surname include:
* Andrew W. Playfair (17 ...
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Playfair (lunar crater)
Playfair is a lunar impact crater that is located in the rugged southern highlands on the near side of the Moon. It was named after the Scottish geologist and mathematician John Playfair. It lies along the eastern rim of the eroded satellite cra ...
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Playfair (Martian crater) Playfair may refer to:
* Playfair (surname)
* Playfair (lunar crater)
* Playfair (Martian crater)
* PlayFair, software that removes Apple's FairPlay DRM file encryption, now succeeded by Hymn
*Playfair Project
* TS ''Playfair'', a Canadian sail ...
* PlayFair, software that removes Apple's FairPlay DRM file encryption, now succeeded by
Hymn
A hymn is a type of song, and partially synonymous with devotional song, specifically written for the purpose of adoration or prayer, and typically addressed to a deity or deities, or to a prominent figure or personification. The word ''hymn'' ...
See also
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Playfair Project
The Scottish National Gallery (formerly the National Gallery of Scotland) is the national art gallery of Scotland. It is located on The Mound in central Edinburgh, close to Princes Street. The building was designed in a Neoclassical architecture ...
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TS ''Playfair'', a Canadian sail training vessel
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Playfair's axiom
In geometry, Playfair's axiom is an axiom that can be used instead of the fifth postulate of Euclid (the parallel postulate):
''In a plane, given a line and a point not on it, at most one line parallel to the given line can be drawn through the p ...
named after John Playfair
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Playfair cipher
The Playfair cipher or Playfair square or Wheatstone–Playfair cipher is a manual symmetric encryption technique and was the first literal digram substitution cipher. The scheme was invented in 1854 by Charles Wheatstone, but bears the name of ...
, a manual encryption technique invented in 1854 by Charles Wheatstone
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Playfair Cricket Annual
''Playfair Cricket Annual'' is a compact annual about cricket that is published in the United Kingdom each April, just before the English cricket season is due to begin. It has been published every year since 1948. Its main purposes are to review ...
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Playfair Race Course
Playfair Race Course (known as the Spokane Interstate Fair from 1901–1935) was the home of horse racing in Spokane, Washington, from 1901 The track started out as a four-furlong (half-mile) flat oval, and expanded to five furlongs () in 1946. ...
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Lyon Playfair Library, now known as the Central Library, at Imperial College London
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