Problem 2094. Sum of diagonals elements of a matrix

Solution 382021

Submitted on 9 Jan 2014 by Marcel

This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

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));