The test suite already spoils the solution.
True. In general that should be avoided, although admittedly it's difficult here because if the correct answer were hard-coded, then changes to: (i) the hardware on which Cody runs; or (ii) the version of MATLAB that Cody employs may eventually invalidate it. Having said that, the Test Suite could still be tightened up (see e.g. Solution 1461085).
Angle between two vectors
Sum of the Matrix Elements
Check that number is whole number
Back to basics 25 - Valid variable names
Back to basics 20 - singleton dimensions
Back to basics 13 - Input variables
Better bullseye matrix
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