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The smallest (and unique up to rotation and reflection) non-trivial case of a magic square, order 3. In mathematics, especially historical and recreational mathematics, a square array of numbers, usually positive integers, is called a magic square if the sums of the numbers in each row, each column, and both main diagonals are the same.
The first 4-magic square was constructed by Charles Devimeux in 1983 and was a 256-order square. A 4-magic square of order 512 was constructed in May 2001 by André Viricel and Christian Boyer. [1] The first 5-magic square, of order 1024 arrived about one month later, in June 2001 again by Viricel and Boyer. They also presented a smaller 4 ...
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Apart from the trivial case of the first order square, most-perfect magic squares are all of order 4n. In their book, Kathleen Ollerenshaw and David S. Brée give a method of construction and enumeration of all most-perfect magic squares. They also show that there is a one-to-one correspondence between reversible squares and most-perfect magic ...
Euler diagram of requirements of some types of 4-by-4 magic squares by CMG Lee. For each square, cells with the same colour (excluding grey) sum to the magic constant. Note *: The second requirement of most-perfect magic squares imply that any 2 cells that are 2 cells diagonally apart (including wraparound) sum to half the magic constant, hence ...
A geometric magic square, often abbreviated to geomagic square, is a generalization of magic squares invented by Lee Sallows in 2001. [1] A traditional magic square is a square array of numbers (almost always positive integers ) whose sum taken in any row, any column, or in either diagonal is the same target number .
The game ends when all the pieces are captured. If both Mandarin pieces are captured, the remaining citizen pieces belong to the player controlling the side that these pieces are on. There is a Vietnamese saying to express this situation: "hết quan, tàn dân, thu quân, bán ruộng" (literally: "Mandarin is gone, citizen dismisses, take back the army, selling the rice field") or "hết ...
The mythology of the ethnic Vietnamese people (the Việt,) has been transferred through oral traditions and in writing. The story of Lạc Long Quân and Âu Cơ has been cited as the common creation myth of the Vietnamese people. The story details how two progenitors, the man known as the Lạc Long Quân and the woman known as the Âu Cơ ...