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  2. Optimal solutions for the Rubik's Cube - Wikipedia

    en.wikipedia.org/wiki/Optimal_solutions_for_the...

    Computer solvers can find either optimal or non-optimal solution in a given turn metric. To distinguish between these states, an asterisk symbol ( * ) is being used. For example, a solution followed by a (18f) means that an 18-move long solution in the face-turn metric was found but that specific solution was not proved to be optimal.

  3. Rubik's Revenge - Wikipedia

    en.wikipedia.org/wiki/Rubik's_Revenge

    A solved Rubik's Revenge cube. The Rubik's Revenge (also known as the 4×4×4 Rubik's Cube) is a 4×4×4 version of the Rubik's Cube.It was released in 1981. Invented by Péter Sebestény, the cube was nearly called the Sebestény Cube until a somewhat last-minute decision changed the puzzle's name to attract fans of the original Rubik's Cube. [1]

  4. Rubik's Cube group - Wikipedia

    en.wikipedia.org/wiki/Rubik's_Cube_group

    The manipulations of the Rubik's Cube form the Rubik's Cube group. The Rubik's Cube group (,) represents the structure of the Rubik's Cube mechanical puzzle.Each element of the set corresponds to a cube move, which is the effect of any sequence of rotations of the cube's faces.

  5. God's algorithm - Wikipedia

    en.wikipedia.org/wiki/God's_algorithm

    God's algorithm is a notion originating in discussions of ways to solve the Rubik's Cube puzzle, [1] but which can also be applied to other combinatorial puzzles and mathematical games. [2] It refers to any algorithm which produces a solution having the fewest possible moves (i.e., the solver should not require any more than this number).

  6. Superflip - Wikipedia

    en.wikipedia.org/wiki/Superflip

    computer graphic of the superflip pattern. The superflip or 12-flip is a special configuration on a Rubik's Cube, in which all the edge and corner pieces are in the correct permutation, and the eight corners are correctly oriented, but all twelve edges are oriented incorrectly ("flipped").

  7. Transfer-matrix method (optics) - Wikipedia

    en.wikipedia.org/wiki/Transfer-matrix_method...

    The transfer-matrix method is based on the fact that, according to Maxwell's equations, there are simple continuity conditions for the electric field across boundaries from one medium to the next. If the field is known at the beginning of a layer, the field at the end of the layer can be derived from a simple matrix operation. A stack of layers ...

  8. Computational complexity of mathematical operations - Wikipedia

    en.wikipedia.org/wiki/Computational_complexity...

    The complexity of an elementary function is equivalent to that of its inverse, since all elementary functions are analytic and hence invertible by means of Newton's method. In particular, if either exp {\displaystyle \exp } or log {\displaystyle \log } in the complex domain can be computed with some complexity, then that complexity is ...

  9. Mats Valk - Wikipedia

    en.wikipedia.org/wiki/Mats_Valk

    This is an accepted version of this page This is the latest accepted revision, reviewed on 23 September 2024. Dutch speedsolver Mats Valk Valk in 2016 Born (1996-05-04) 4 May 1996 (age 28) Amstelveen Nationality Dutch Occupation Student Years active 2007-present Known for Rubik's Cube speedsolver Medal record Representing Netherlands Speedcubing WCA World Championship Event 1 st 2 nd 3 rd 3×3 ...