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.
Back to basics 8 - Matrix Diagonals
Sum of diagonal of a square matrix
Count decimal digits of a number
Sum of the Matrix Elements
07 - Common functions and indexing 1
03 - Matrix Variables 2
07 - Common functions and indexing 6
02 - Vector Variables 3
05 - Vector Equations 2
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office