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  2. Associative magic square - Wikipedia

    en.wikipedia.org/wiki/Associative_magic_square

    The number zero for n = 6 is an example of a more general phenomenon: associative magic squares do not exist for values of n that are singly even (equal to 2 modulo 4). [3] Every associative magic square of even order forms a singular matrix, but associative magic squares of odd order can be singular or nonsingular. [4]

  3. Magic square - Wikipedia

    en.wikipedia.org/wiki/Magic_square

    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.

  4. Siamese method - Wikipedia

    en.wikipedia.org/wiki/Siamese_method

    The Siamese method, or De la Loubère method, is a simple method to construct any size of n-odd magic squares (i.e. number squares in which the sums of all rows, columns and diagonals are identical). The method was brought to France in 1688 by the French mathematician and diplomat Simon de la Loubère , [ 1 ] as he was returning from his 1687 ...

  5. Magic constant - Wikipedia

    en.wikipedia.org/wiki/Magic_constant

    The magic constant or magic sum of a magic square is the sum of numbers in any row, column, or diagonal of the magic square. For example, the magic square shown below has a magic constant of 15. For a normal magic square of order n – that is, a magic square which contains the numbers 1, 2, ..., n 2 – the magic constant is = +.

  6. Talk:Magic square - Wikipedia

    en.wikipedia.org/wiki/Talk:Magic_square

    I was combing the internet trying to find a method to make an arbitrary 3x3 magic square -- not a normalized one. Meaning the sum doesn't have to be 15. I remember in grade school there was a simple method they taught to do it, but I couldn't remember it. I worked out the trick, or a method. In a 3x3 magic square the center is always 1/3 of the ...

  7. Frénicle standard form - Wikipedia

    en.wikipedia.org/wiki/Frénicle_standard_form

    A magic square is in the Frénicle standard form, named for Bernard Frénicle de Bessy, if the following two conditions hold: . the element at position [1,1] (top left corner) is the smallest of the four corner elements; and

  8. Combination puzzle - Wikipedia

    en.wikipedia.org/wiki/Combination_puzzle

    The Square One consists of three layers. The upper and lower layers contain kite and triangular pieces. The middle layer contains two trapezoid pieces, which together may form an irregular hexagon or a square. Square One is an example of another very large class of puzzle — cuboid puzzles which have cubies that are not themselves all cuboid.

  9. Lee Sallows - Wikipedia

    en.wikipedia.org/wiki/Lee_Sallows

    Sallows is an expert on the theory of magic squares [1] and has invented several variations on them, including alphamagic squares [2] [3] and geomagic squares. [4] The latter invention caught the attention of mathematician Peter Cameron who has said that he believes that "an even deeper structure may lie hidden beyond geomagic squares" [5]