3 x 3 Magic Squares

[Dustinsfl]

How would I generalized the set of all 3 x 3 magic squares?

I don't know what to do this at all for this.

 

[Mark44]

Think about what characterizes a magic square: the sum of the elements across any row, down any column, or along either diagonal, is constant. If a, b, c, d, e, f, g, h, and i are the elements (going left to right, and top to bottom), how can you characterize a magic square?

 

[Dustinsfl]

a+b+c=d+e+f=g+h+i=a+e+i=g+e+c

 

[Mark44]

What about down the columns?