Dürer's magic square is a Magic Square with Magic Constant 34 used in an engraving entitled *Melencolia
I* by Albrecht Dürer (The British Museum). The engraving shows a disorganized jumble of scientific equipment lying unused
while an intellectual sits absorbed in thought. Dürer's magic square is located in the upper left-hand corner of the
engraving. The numbers 15 and 14 appear in the middle of the bottom row, indicating the date of the engraving, 1514.

**References**

Boyer, C. D. and Merzbach, U. C. *A History of Mathematics.* New York: Wiley, pp. 296-297, 1991.

Hunter, J. A. H. and Madachy, J. S. *Mathematical Diversions.* New York: Dover, p. 24, 1975.

Rivera, C. ``Melancholia.'' http://www.sci.net.mx/~crivera/melancholia.htm.

© 1996-9

1999-05-24