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Strachey method for magic squares — The Strachey method for magic squares is an algorithm for generating magic squares of singly even order 4 n +2.Example of magic square of order 6 constructed with the Strachey method: example 35 1 6 26 19 24 3 32 7 21 23 25 31 9 2 22 27 20 8 28… … Wikipedia
Maidenhead Locator System — The Maidenhead Locator System is a geographic coordinate system used by amateur radio operators. Dr. John Morris, G4ANB, originally devised the system, and a group of VHF managers, meeting in Maidenhead, England in 1980, adopted it. The… … Wikipedia
Sierpiński carpet — The Sierpinski carpet is a plane fractal first described by Wacław Sierpiński in 1916. The carpet is a generalization of the Cantor set to two dimensions (another is Cantor dust). Sierpiński demonstrated that this fractal is a universal curve, in … Wikipedia
Most-perfect magic square — from the Parshvanath Jain temple in Khajuraho 7 … Wikipedia
Algorithmics of sudoku — The class of Sudoku puzzles consists of a partially completed row column grid of cells partitioned into N regions or zones each of size N cells, to be filled in using a prescribed set of N distinct symbols (typically the numbers {1, ..., N }), so … Wikipedia
Subtract a square — (also referred to as take a square) is a two player mathematical game of strategy starting with a positive integer and both players taking turns subtracting a non zero square number not larger than the current value. The game is usually played as … Wikipedia
Tsuga chinensis — Chinese Hemlock Conservation status Least Concern (IUCN 2.3)[1] … Wikipedia
Problems in Latin squares — In mathematics, the theory of Latin squares is an active research area with many open problems. As in other areas of mathematics, such problems are often made public at professional conferences and meetings. Problems posed here appeared in, for… … Wikipedia
