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).
Find the numeric mean of the prime numbers in a matrix.
Solve the set of simultaneous linear equations
Determine Whether an array is empty
matrix of natural number
Do Fast Fourier Transformation
Back to basics 20 - singleton dimensions
Back to basics 10 - Max Float
Back to basics 7 - Equal NaNs
Back to basics 17 - white space
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