Prove that the central cell (the number in the middle cell) of any 3x3 magic square is always one-third the magic constant (the sum of any side, either 2 major diagonals, or either center row in the magic square).
Show that in any larger square (n x n), the central cell does not need to be 1/n the magic constant.
(In reply to Solution to part 1
For part 2, it suffices to find ONE nxn square magic such that the
center cell isn't 1/n the magic constant; you don't need a general
Posted by e.g.
on 2004-04-16 17:12:32