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  2. 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 = +.

  3. Magic square - Wikipedia

    en.wikipedia.org/wiki/Magic_square

    The second square is a corresponding non-normal magic square with r = 8, s = 2, a = 1, c = 1, and d = 10 such that the new magic constant is M = 38. The third square is an order 5 normal magic square, which is a 90 degree clockwise rotated version of the square generated by De la Loubere method.

  4. List of mathematical constants - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_constants

    Magic angle [75] 0.95531 66181 245092 ... Lieb's square ice constant [80] 1.53960 07178 39002 03869 ... Foias constant is the unique real number such that if x 1 = ...

  5. Magic graph - Wikipedia

    en.wikipedia.org/wiki/Magic_graph

    Cells of the same colour sum to the magic constant. * In 4 × 4 most-perfect magic squares, any 2 cells that are 2 cells diagonally apart (including wraparound) sum to half the magic constant, hence any 2 such pairs also sum to the magic constant. A semimagic square is an n × n square with the numbers 1 to n 2 in its cells, in which the sum of ...

  6. 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]

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  8. British court names alleged Chinese spy who forged close ties ...

    www.aol.com/british-court-names-alleged-chinese...

    An alleged Chinese spy who forged a close relationship with Prince Andrew has been identified by a British court, the latest twist in a case that has shone a light on Beijing’s influence inside ...

  9. 1089 (number) - Wikipedia

    en.wikipedia.org/wiki/1089_(number)

    1089 is widely used in magic tricks because it can be "produced" from any two three-digit numbers. This allows it to be used as the basis for a Magician's Choice.For instance, one variation of the book test starts by having the spectator choose any two suitable numbers and then apply some basic maths to produce a single four-digit number.