Variation or Variations may refer to:

Science and mathematics

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 syz ...

, any perturbation of the mean motion or orbit of a planet or satellite, particularly of the moon *

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 **

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 *

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 * ''p''-variation in mathematical analysis, a family of seminorms of functions *

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 *

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 'a'' ...

in mathematical analysis, a way of quantifying the change in a function over a subset of

\mathbb^n

or a measure space *

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

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 * ''Copp ...

or pas seul, solo dance or dance figure * ''Variations'' (ballet), a 1966 ballet by choreographer George Balanchine * ''Variations'' (film), a 1998 short film by Nathaniel Dorsky * ''Variations'' (journal), a journal of literature published by Peter Lang

Music

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 * ''Variations'' (Cage), a series of works by American avant-garde composer John Cage * ''Variations'' (musical), 1982 Australian musical by Nick Enright and Terence Clarke * ''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 ...

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 * ''Variations'' (Andrew Lloyd Webber album), 1978 * ''Variations'' (Eddie Rabbitt album), 1978

Other uses

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 g ...

, modifications made to a game by a community of players (as opposed to a central authority) *

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 *

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 *

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

Science and mathematics

Arts

Music

Other uses

See also