Variation or Variations may refer to:
Science and mathematics
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Variation (astronomy)
In astronomy, the variation of the Moon is one of the principal perturbations in the motion of the Moon.
Discovery
The variation was discovered by Tycho Brahe, who noticed that, starting from a lunar eclipse in December 1590, at the times of s ...
, any perturbation of the mean motion or orbit of a planet or satellite, particularly of the moon
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Genetic variation, the difference in DNA among individuals or the differences between populations
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Human genetic variation
Human genetic variation is the genetic differences in and among populations. There may be multiple variants of any given gene in the human population (alleles), a situation called polymorphism.
No two humans are genetically identical. Even ...
, genetic differences in and among populations of humans
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Magnetic variation
Magnetic declination, or magnetic variation, is the angle on the horizontal plane between magnetic north (the direction the north end of a magnetized compass needle points, corresponding to the direction of the Earth's magnetic field lines) and ...
, difference between magnetic north and true north, measured as an angle
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''p''-variation in mathematical analysis, a family of seminorms of functions
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Coefficient of variation in probability theory and statistics, a standardized measure of dispersion of a probability distribution or frequency distribution
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Total variation
In mathematics, the total variation identifies several slightly different concepts, related to the ( local or global) structure of the codomain of a function or a measure. For a real-valued continuous function ''f'', defined on an interval ...
in mathematical analysis, a way of quantifying the change in a function over a subset of
or a measure space
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Calculus of variations in mathematical analysis, a method of finding maxima and minima of functionals
Arts
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Variation (ballet)
In ballet, a variation (sometimes referred to as a pas seul, meaning to dance alone) is a solo dance. In a classical grand pas de deux, the ballerina and danseur each perform a variation.
Examples
* ''La Bayadère'' – Gamzatti, Nikiya
* ''Cop ...
or pas seul, solo dance or dance figure
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''Variations'' (ballet), a 1966 ballet by choreographer George Balanchine
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''Variations'' (film), a 1998 short film by Nathaniel Dorsky
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''Variations'' (journal), a journal of literature published by Peter Lang
Music
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Variation (music), a formal technique where material is altered during repetition
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''Variations'' (Cage), a series of works by American avant-garde composer John Cage
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''Variations'' (musical), 1982 Australian musical by Nick Enright and Terence Clarke
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''Variations'' (Stravinsky), Igor Stravinsky's last orchestral composition written in 1963–64
*''Variation'', album by
Akina Nakamori
is a Japanese singer and actress. She is one of the most popular and best-selling artists in Japan. Akina achieved national recognition after winning the 1981 season of the talent show ''Star Tanjō!''. Her debut single "Slow Motion" was relea ...
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Les Variations, a French rock group
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''Variations'' (Andrew Lloyd Webber album), 1978
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''Variations'' (Eddie Rabbitt album), 1978
Other uses
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Variation (game)
House rules are unofficial modifications to official game rules adopted by individual groups of players. House rules may include the removal or alteration of existing rules, or the addition of new rules. Such modifications are common in board ...
, modifications made to a game by a community of players (as opposed to a central authority)
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Variation (game tree) A variation can refer to a specific sequence of successive moves in a turn-based game, often used to specify a hypothetical future state of a game that is being played. Although the term is most commonly used in the context of Chess analysis, it has ...
, a particular series of moves
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Variation (linguistics)
Variation is a characteristic of language: there is more than one way of saying the same thing. Speakers may vary pronunciation ( accent), word choice ( lexicon), or morphology and syntax (sometimes called "grammar"). But while the diversity of v ...
, a linguistic characteristic of languages
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Variation (horse)
Variation (1827–1847) was a British Thoroughbred racehorse and broodmare who won the classic Oaks Stakes at Epsom Downs Racecourse in 1830. The Oaks was Variation's racing debut and she went on to win a total of eight races from fifteen s ...
, a British Thoroughbred
See also
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Variability (disambiguation) Variability is how spread out or closely clustered a set of data is.
Variability may refer to:
Biology
*Genetic variability, a measure of the tendency of individual genotypes in a population to vary from one another
* Heart rate variability, a ph ...
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Change (disambiguation)
Change or Changing may refer to:
Alteration
* Impermanence, a difference in a state of affairs at different points in time
* Menopause, also referred to as "the change", the permanent cessation of the menstrual period
* Metamorphosis, or change, ...
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Variations on a Theme (disambiguation) Variations on a Theme may refer to:
* Variations on a Theme of Frank Bridge
* Carmen Variations (Horowitz), subtitled "Variations on a Theme from ''Carmen''"
* Variations on a Theme of Chopin (Mompou)
* Variations on a Theme of Chopin (Rachmaninof ...
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Rate of change (disambiguation) Rate of change may refer to:
* Rate of change (mathematics), either average rate of change or instantaneous rate of change
** Instantaneous rate of change, rate of change at a given instant in time
* Rate of change (technical analysis), a simple t ...
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Repetition (disambiguation)
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Variant (disambiguation)
Variant may refer to:
In arts and entertainment
* ''Variant'' (magazine), a former British cultural magazine
* Variant cover, an issue of comic books with varying cover art
* ''Variant'' (novel), a novel by Robison Wells
* "The Variant", 2021 e ...
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Calculus of variations, a field of mathematics which deals with functions of functions
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Genetic diversity, total number of genetic characteristics in the genetic makeup of a species
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Variance
In probability theory and statistics, variance is the expectation of the squared deviation of a random variable from its population mean or sample mean. Variance is a measure of dispersion, meaning it is a measure of how far a set of numbe ...
, expectation of deviation in probability theory or statistics
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