Variation or Variations may refer to:
Science and mathematics
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Variation (astronomy), any perturbation of the mean motion or orbit of a planet or satellite, particularly of the moon
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Genetic variation
Genetic variation is the difference in DNA among individuals or the differences between populations. The multiple sources of genetic variation include mutation and genetic recombination. Mutations are the ultimate sources of 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 m ...
, genetic differences in and among populations of humans
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Magnetic variation, 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, the coefficient of variation (CV), also known as relative standard deviation (RSD), is a standardized measure of dispersion of a probability distribution or frequency distribution. It is often expressed as ...
in probability theory and statistics, a standardized measure of dispersion of a probability distribution or frequency distribution
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Total variation 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
The calculus of variations (or Variational Calculus) is a field of mathematical analysis that uses variations, which are small changes in functions
and functionals, to find maxima and minima of functionals: mappings from a set of functions t ...
in mathematical analysis, a method of finding maxima and minima of functionals
Arts
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Variation (ballet) 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)
In music, variation is a formal technique where material is repeated in an altered form. The changes may involve melody, rhythm, harmony, counterpoint, timbre, orchestration or any combination of these.
Variation techniques
Mozart's Twelve ...
, 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 Singing, singer and Actor, 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 M ...
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Les Variations
Les Variations was a French rock band from the late 1960s to mid-1970s, that sang in English and was known for its rock guitar- based music. Its three members were born in Morocco and were of Jewish origin. They were France's first band to he ...
, 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), modifications made to a game by a community of players (as opposed to a central authority)
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Variation (game tree), 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 va ...
, a linguistic characteristic of languages
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Variation (horse), 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 phy ...
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Change (disambiguation)
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Variations on a Theme (disambiguation)
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Rate of change (disambiguation)
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Repetition (disambiguation)
Repetition may refer to:
* Repetition (rhetorical device), repeating a word within a short space of words
*Repetition (bodybuilding), a single cycle of lifting and lowering a weight in strength training
*Working title for the 1985 slasher film '' ...
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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
The calculus of variations (or Variational Calculus) is a field of mathematical analysis that uses variations, which are small changes in functions
and functionals, to find maxima and minima of functionals: mappings from a set of functions t ...
, a field of mathematics which deals with functions of functions
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Genetic diversity
Genetic diversity is the total number of genetic characteristics in the genetic makeup of a species, it ranges widely from the number of species to differences within species and can be attributed to the span of survival for a species. It is dis ...
, 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 numbers ...
, expectation of deviation in probability theory or statistics
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