Cody

Problem 1158. Sum the elements in either diagonal of a square matrix

Solution 184446

Submitted on 2 Jan 2013 by James
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Test Suite

Test Status Code Input and Output
1   Pass
%% x = ones(2); y_correct = 4; assert(isequal(sumDiagonalElements(x),y_correct))

``` z = 2 2 a = 1 1 1 1 ans = 4 ```

2   Pass
%% x = ones(3); y_correct = 5; assert(isequal(sumDiagonalElements(x),y_correct))

``` z = 3 3 a = 1 0 1 0 1 0 1 0 1 ans = 5 ```

3   Pass
%% x = magic(8); y_correct = 520; assert(isequal(sumDiagonalElements(x),y_correct))

``` z = 8 8 a = 1 0 0 0 0 0 0 1 0 1 0 0 0 0 1 0 0 0 1 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 1 ans = 520 ```

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

``` z = 9 9 a = 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 0 0 0 1 0 0 0 1 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 1 ans = 697 ```