• Thumbnail for Permutation
    In mathematics, a permutation of a set can mean one of two different things: an arrangement of its members in a sequence or linear order, or the act or...
    76 KB (11,374 words) - 13:01, 27 June 2024
  • A permutation test (also called re-randomization test or shuffle test) is an exact statistical hypothesis test making use of the proof by contradiction...
    22 KB (2,837 words) - 11:17, 17 July 2024
  • entries 0.: 26  An n × n permutation matrix can represent a permutation of n elements. Pre-multiplying an n-row matrix M by a permutation matrix P, forming PM...
    17 KB (3,014 words) - 20:44, 16 May 2024
  • cyclic permutation is a permutation consisting of a single cycle. In some cases, cyclic permutations are referred to as cycles; if a cyclic permutation has...
    13 KB (2,039 words) - 05:13, 6 June 2024
  • Thumbnail for Permutation group
    mathematics, a permutation group is a group G whose elements are permutations of a given set M and whose group operation is the composition of permutations in G...
    23 KB (3,367 words) - 18:53, 18 June 2024
  • Combinations and permutations in the mathematical sense are described in several articles. Described together, in-depth: Twelvefold way Explained separately...
    419 bytes (74 words) - 22:32, 24 December 2023
  • the permutations of X (i.e. the bijective functions from X to X) fall into two classes of equal size: the even permutations and the odd permutations. If...
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  • Look up permutation in Wiktionary, the free dictionary. In mathematics, permutation relates to the act of arranging all the members of a set into some...
    1,017 bytes (149 words) - 08:12, 2 March 2022
  • A random permutation is a random ordering of a set of objects, that is, a permutation-valued random variable. The use of random permutations is often...
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  • epsilon represents a collection of numbers; defined from the sign of a permutation of the natural numbers 1, 2, ..., n, for some positive integer n. It...
    30 KB (5,171 words) - 16:16, 30 June 2024
  • Permutation City is a 1994 science-fiction novel by Greg Egan that explores many concepts, including quantum ontology, through various philosophical aspects...
    15 KB (1,925 words) - 16:26, 30 May 2024
  • cryptography, a pseudorandom permutation (PRP) is a function that cannot be distinguished from a random permutation (that is, a permutation selected at random with...
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  • Thumbnail for Permutation graph
    mathematical field of graph theory, a permutation graph is a graph whose vertices represent the elements of a permutation, and whose edges represent pairs...
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  • Thumbnail for Fisher–Yates shuffle
    Fisher–Yates shuffle (category Permutations)
    until no elements remain. The algorithm produces an unbiased permutation: every permutation is equally likely. The modern version of the algorithm takes...
    35 KB (4,274 words) - 11:11, 3 April 2024
  • Thumbnail for Bit-reversal permutation
    In applied mathematics, a bit-reversal permutation is a permutation of a sequence of n {\displaystyle n} items, where n = 2 k {\displaystyle n=2^{k}} is...
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  • In combinatorial mathematics, a partial permutation, or sequence without repetition, on a finite set S is a bijection between two specified subsets of...
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  • Thumbnail for Heap's algorithm
    possible permutations of n objects. It was first proposed by B. R. Heap in 1963. The algorithm minimizes movement: it generates each permutation from the...
    13 KB (1,833 words) - 02:25, 1 January 2024
  • Thumbnail for Symmetric group
    defined over a finite set of n {\displaystyle n} symbols consists of the permutations that can be performed on the n {\displaystyle n} symbols. Since there...
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  • estimate of the generalization error. Measuring variable importance through permutation. The report also offers the first theoretical result for random forests...
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  • its vertical edge at the same time. There are 41 unique cases for the permutations of a corner and its matching edge on the cube, and the most efficient...
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  • In automata theory, a permutation automaton, or pure-group automaton, is a deterministic finite automaton such that each input symbol permutes the set...
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  • combinatorial mathematics, an alternating permutation (or zigzag permutation) of the set {1, 2, 3, ..., n} is a permutation (arrangement) of those numbers so...
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  • Thumbnail for Permutation (music)
    In music, a permutation (order) of a set is any ordering of the elements of that set. A specific arrangement of a set of discrete entities, or parameters...
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  • mathematical set theory, a permutation model is a model of set theory with atoms (ZFA) constructed using a group of permutations of the atoms. A symmetric...
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  • permutations and permutation patterns, a permutation class is a set C {\displaystyle C} of permutations for which every pattern within a permutation in...
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  • In mathematics, a permutation polynomial (for a given ring) is a polynomial that acts as a permutation of the elements of the ring, i.e. the map x ↦ g...
    19 KB (2,699 words) - 21:04, 29 May 2022
  • mathematical permutations. Alternating permutation Circular shift Cyclic permutation Derangement Even and odd permutations—see Parity of a permutation Josephus...
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  • Thumbnail for Group theory
    systematic study was permutation groups. Given any set X and a collection G of bijections of X into itself (known as permutations) that is closed under...
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  • that are preserved by this type of shuffle, and a Gilbreath permutation is a permutation that can be formed by a Gilbreath shuffle. A Gilbreath shuffle...
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  • Permutational multivariate analysis of variance (PERMANOVA), is a non-parametric multivariate statistical permutation test. PERMANOVA is used to compare...
    4 KB (604 words) - 11:17, 18 May 2024