text: Magic Square | Even Order | Function for calculating Magic square ; 2 - D matrix with all entries as 0 ; Change value of array elements at fix location as per the rule ( n * n + 1 ) - arr [ i ] [ [ j ] Corners of order ( n / 4 ) * ( n / 4 ) Top left corner ; Top right corner ; Bottom Left corner ; Bottom Right corner ; Centre of matrix , order ( n / 2 ) * ( n / 2 ) ; Printing the square ; Driver Program ; Function call
code: def DoublyEven ( n ) : NEW_LINE INDENT arr = [ [ ( n * y ) + x + 1 for x in range ( n ) ] for y in range ( n ) ] NEW_LINE for i in range ( 0 , n / 4 ) : NEW_LINE INDENT for j in range ( 0 , n / 4 ) : NEW_LINE INDENT arr [ i ] [ j ] = ( n * n + 1 ) - arr [ i ] [ j ] ; NEW_LINE DEDENT DEDENT for i in range ( 0 , n / 4 ) : NEW_LINE INDENT for j in range ( 3 * ( n / 4 ) , n ) : NEW_LINE INDENT arr [ i ] [ j ] = ( n * n + 1 ) - arr [ i ] [ j ] ; NEW_LINE DEDENT DEDENT for i in range ( 3 * ( n / 4 ) , n ) : NEW_LINE INDENT for j in range ( 0 , n / 4 ) : NEW_LINE INDENT arr [ i ] [ j ] = ( n * n + 1 ) - arr [ i ] [ j ] ; NEW_LINE DEDENT DEDENT for i in range ( 3 * ( n / 4 ) , n ) : NEW_LINE INDENT for j in range ( 3 * ( n / 4 ) , n ) : NEW_LINE INDENT arr [ i ] [ j ] = ( n * n + 1 ) - arr [ i ] [ j ] ; NEW_LINE DEDENT DEDENT for i in range ( n / 4 , 3 * ( n / 4 ) ) : NEW_LINE INDENT for j in range ( n / 4 , 3 * ( n / 4 ) ) : NEW_LINE INDENT arr [ i ] [ j ] = ( n * n + 1 ) - arr [ i ] [ j ] ; NEW_LINE DEDENT DEDENT for i in range ( n ) : NEW_LINE INDENT for j in range ( n ) : NEW_LINE INDENT print ' % 2d ▁ ' % ( arr [ i ] [ j ] ) , NEW_LINE DEDENT print NEW_LINE DEDENT DEDENT n = 8 NEW_LINE DoublyEven ( n ) NEW_LINE