Problem 2094. Sum of diagonals elements of a matrix

Solution 850001

Submitted on 13 Mar 2016 by eggart

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Test	Status	Code Input and Output
1	Pass	x = [1 2 3;4 5 6; 7 8 9;]; y_correct = 25; assert(isequal(DiagSum(x),y_correct));
2	Pass	x = [1 2 3 4 5;6 7 8 9 10; 11 12 13 14 15; 16 17 18 19 20; 21 22 23 24 25;]; y_correct = 117; assert(isequal(DiagSum(x),y_correct));
3	Pass	x = ones(7); y_correct = 13; assert(isequal(DiagSum(x),y_correct));
4	Pass	x = magic(9); y_correct = 697; assert(isequal(DiagSum(x),y_correct));