Magic Square of my Birthday

2012-01-09 16:24

Senthil Kumaran

06	01	19	81
44	45	8	7
46	7	47	10
11	54	33	9

Inspired from Ramanujam's Magic Square

The process is simple - http://nrich.maths.org/1380

But the interesting part in the solution involves seeing a symmetry in 2d arrangement of numbers like if you fold the square, the external numbers add up to the internal numbers of the facing side. :-)