Alternation or AlterNation may refer to:
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Alternation (complexity)
In computational complexity theory, an alternating Turing machine (ATM) is a non-deterministic Turing machine (NTM) with a rule for accepting computations that generalizes the rules used in the definition of the complexity classes NP and co-N ...
, a resource in computational complexity theory
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Alternation (formal language theory) In formal language theory and pattern matching, alternation is the union of two sets of strings, or equivalently the logical disjunction of two patterns describing sets of strings.
Regular languages are closed under alternation, meaning that the ...
, the set union of two sets of strings in formal language theory and pattern matching
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Alternation (geometry)
In geometry, an alternation or ''partial truncation'', is an operation on a polygon, polyhedron, tiling, or higher dimensional polytope that removes alternate vertices.Coxeter, Regular polytopes, pp. 154–156 8.6 Partial truncation, or ...
, a geometric operation for deriving polytopes from other polytopes
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Alternation (linguistics), a variation in the phonological form of a morpheme
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Diathesis alternation
In linguistics, diathesis alternation or verb alternationLevin, B. (1993) English Verb Classes and Alternations: A Preliminary Investigation, University of Chicago Press, Chicago, IL occurs when the same verb can be used in different subcatego ...
, a linguistics term relating to verb use
* R/N alternation; see
Rhotacism (sound change)
Rhotacism () or rhotacization is a sound change that converts one consonant (usually a voiced alveolar consonant: , , , or ) to a rhotic consonant in a certain environment. The most common may be of to . When a dialect or member of a language fa ...
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Logical disjunction
In logic, disjunction is a logical connective typically notated as \lor and read aloud as "or". For instance, the English language sentence "it is raining or it is snowing" can be represented in logic using the disjunctive formula R \lor ...
, the ''or'' function
* ''AlterNation'', a show on
NE1 FM
Nova Radio North East, (formerly NE1fm) is an FM broadcasting, FM Community radio in the United Kingdom, community radio station based in Newcastle upon Tyne, England. Launched in 2007, the station broadcasts 24 hours a day on 102.5 FM, and onli ...
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WSTB
WSTB (88.9 FM broadcasting, FM) is a Non-commercial educational station, non-commercial educational Radio broadcasting, radio station licensed to Streetsboro, Ohio, carrying an modern rock, alternative rock format known as "88.9 The AlterNation". ...
, a radio station in Streetsboro, Ohio known as ''The AlterNation''
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