8/13/2008

Magic Square

(Barcelona, Spain) I found a chiseled example of a magic square on the exterior of the Temple Expiatori de la Sagrada Família , a cathedral in Barcelona that was designed by the Catalan architect Antoni Gaudí.

If you add the numbers in any row, in the diagonals, along the four corners, or in the four smaller squares, you get 33. This is believed by many Christians to be the age of Christ when He died on the cross.

Mathematicians, of course, know that Gaudi's magic square is not a normal magic square, as two numbers (10 and 14) are duplicated and two others (12 and 16) are missing, thus failing the 1→n² rule associated with true magic squares. Still, I admire Gaudi's creativity and sense of symmetry.

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