Sigh! There should really be some quality control on Cody, to save us from stupid problems like this...
The third element of aVec in the the image contained within your problem description does not match the third element of aVec used in the test suite.
Sum of diagonal of a square matrix
Is A the inverse of B?
Matlab Basics - y as a function of x
01 - Scalar variables
02 - Vector Variables 4
03 - Matrix Variables 2
03 - Matrix Variables 4
03 - Matrix Variables 3
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