Cody

# Problem 2533. Find Out sum of principal diagonal element of given matrix

Solution 1648572

Submitted on 15 Oct 2018
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### Test Suite

Test Status Code Input and Output
1   Fail
x = 1; y_correct = 1; assert(isequal(sum_diag(x),y_correct))

Error in solution Line: 2 Column: 18 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

2   Fail
x = eye(3); y_correct = 3; assert(isequal(sum_diag(x),y_correct))

Error in solution Line: 2 Column: 18 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

3   Fail
x = magic(3); y_correct = 15; assert(isequal(sum_diag(x),y_correct))

Error in solution Line: 2 Column: 18 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.