Cody

# Problem 2094. Sum of diagonals elements of a matrix

Solution 396016

Submitted on 3 Feb 2014 by Alfonso Nieto-Castanon
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### Test Suite

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));

ans = 1 0 0 0 1 0 0 0 1

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));

ans = 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1

3   Pass
%% x = ones(7); y_correct = 13; assert(isequal(DiagSum(x),y_correct));

ans = 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1

4   Pass
%% x = magic(9); y_correct = 697; assert(isequal(DiagSum(x),y_correct));

ans = 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1