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  • ...ur within a single 9-element [[permutation]].<ref>{{Cite OEIS|A088532|name=Patterns of permutations}}</ref> ...
    683 bytes (81 words) - 21:54, 17 March 2025
  • ==Permutation patterns== ...attern]]s, a combinatorial class of [[permutation class]]es, enumerated by permutation length, is called a [[Wilf class]].<ref>{{citation ...
    5 KB (740 words) - 20:58, 17 June 2025
  • ...''r''&nbsp;=&nbsp;3 and ''s''&nbsp;=&nbsp;2, the formula tells us that any permutation of three numbers has an increasing subsequence of length three or a decreas === Permutation pattern interpretation === ...
    10 KB (1,526 words) - 15:57, 18 May 2024
  • ...yle of [[knitting]] in which textures of crossing layers are achieved by [[permutation|permuting]] stitches. For example, given four stitches appearing on the nee ..., the "inner" cables sometimes split directions, forming complex branching patterns. Another effect is to have one cable "pierce" another cable, rather than ha ...
    7 KB (1,108 words) - 19:23, 22 May 2025
  • In [[substitution–permutation network]]s, confusion is provided by [[substitution box]]es.{{sfn|Liu|Rijme ...the ciphertext and the plain text. For example, diffusion ensures that any patterns in the plaintext, such as redundant bits, are not apparent in the ciphertex ...
    12 KB (1,665 words) - 14:18, 25 May 2025
  • ...moved may consist of simple shapes, or they may be imprinted with colours, patterns, sections of a larger picture (like a jigsaw puzzle), numbers, or letters. ...d }}</ref> because the combinations of the 15 puzzle can be generated by [[Permutation#Definition|3-cycles]]. In fact, any <math>n \times m</math> sliding puzzle ...
    5 KB (817 words) - 04:39, 19 May 2025
  • ...ge (blue arrows) and 120° vertex (pink and orange arrows) rotations that [[permutation|permute]] the tetrahedron through the positions. The twelve rotations form ...der the "objects" possessing symmetry to be geometric figures, images, and patterns, such as a [[wallpaper group|wallpaper pattern]]. For symmetry of physical ...
    17 KB (2,673 words) - 20:55, 10 October 2025
  • ...circuits in graphic tensorial sums|doi-access = free}}</ref> 209 [[partial permutation]]s on four elements,<ref>{{Cite OEIS|A002720|name=Number of partial permuta ...ive primes}}</ref><ref>{{citation|title=The Call of the Primes: Surprising Patterns, Peculiar Puzzles, and Other Marvels of Mathematics|first=Owen|last=O'Shea| ...
    4 KB (530 words) - 01:27, 19 January 2025
  • ...scription|Area of combinatorics that deals with the number of ways certain patterns can be formed}} ...iption. The [[twelvefold way]] provides a unified framework for counting [[permutation]]s, [[combination]]s and [[Partition of a set|partitions]]. ...
    10 KB (1,442 words) - 05:16, 9 December 2024
  • ...the [[cyclic permutation|cycle]] structure of [[Enigma machine|Enigma]] [[permutation]]s. At top are the two rotor banks, one with lid open; below is the rheosta ...the [[cyclic permutation|cycle]] structure of [[Enigma machine|Enigma]] [[permutation]]s, thereby facilitating the decryption of German [[Enigma machine|Enigma]] ...
    22 KB (3,346 words) - 17:35, 25 March 2024
  • ...to fractals and dynamical systems results from the fact that many fractal patterns have the symmetries of [[Fuchsian group]]s in general (see, for example [[I ...ersions]]. That is, if inv(''w'') denotes the number of inversions of the permutation ''w'' and ''S''<sub>''n''</sub> denotes the set of permutations of length ' ...
    10 KB (1,425 words) - 00:47, 28 December 2024
  • Any permutation of the corners is possible, including odd permutations. Seven of the corner ...to make the centre pieces distinguishable, which would make an odd centre permutation visible. ...
    17 KB (2,557 words) - 20:09, 23 June 2025
  • ...|A collineation of the Fano plane corresponding to the 3-bit [[Gray code]] permutation]] ...tion]]'', ''[[automorphism]]'', or ''[[symmetry]]'' of the Fano plane is a permutation of the 7 points that preserves collinearity: that is, it carries [[incidenc ...
    24 KB (3,678 words) - 18:56, 16 June 2025
  • ...atrices]]. Thus, the Costas arrays for any given ''n'' are a subset of the permutation matrices of order ''n''. ...Observe: {2,1,3,4} would describe the aforementioned array. This defines a permutation. This makes it easy to communicate the arrays for a given order of ''N''. ...
    18 KB (2,063 words) - 19:07, 29 December 2024
  • ...where else. || ''a<sub>ij</sub>'' = δ<sub>''n''+1−''i'',''j''</sub> || A [[permutation matrix]]. == Specific patterns for entries == ...
    32 KB (4,522 words) - 21:01, 14 April 2025
  • A '''cyclic number''' is an [[integer]] for which [[cyclic permutation]]s of the digits are successive [[integer multiple]]s of the number. The m Multiples of these fractions exhibit cyclic permutation: ...
    12 KB (1,223 words) - 18:06, 28 June 2025
  • * [[Block (meteorology)]], large-scale patterns in the atmospheric pressure field * [[Block (permutation group theory)]] ...
    6 KB (806 words) - 19:27, 16 November 2025
  • ...ac{(n_e + n_w)!}{(n_e + n_w - a - b)!(a + b)!}</math> i.e. the number of [[permutation]]s of <math>(n_e + n_w)</math> objects of which cards in the suit are indis ...tion of the thirteen cards in a hand over the four suits. In total 39 hand patterns are possible, but only 13 of them have an ''[[a priori probability]]'' exce ...
    15 KB (2,307 words) - 12:33, 17 March 2024
  • ...s. The effort is purported to have driven Leffler insane. Manual [[random permutation]] is an onerous and time-consuming task that limited the number of Bingo ca ...ibility of multiple winning cards is unavoidable because any one of twelve patterns on every card can win the game. But not all 552 septillion cards need to be ...
    10 KB (1,458 words) - 10:42, 2 August 2024
  • ...em.org/Doc/Examples/rubik.html "Analyzing Rubik's Cube with GAP"]'': the [[permutation group]] of Rubik's Cube is examined with [[GAP computer algebra system]]</r *[http://www.randelshofer.ch/rubik/pyraminx Patterns] A collection of pretty patterns for the Pyraminx ...
    10 KB (1,457 words) - 19:36, 22 June 2025
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