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).
Back to basics 23 - Triangular matrix
Find nearest prime number less than input number
Given a matrix, swap the 2nd & 3rd columns
select the primes of a vector
Create a Matrix of Zeros
Back to basics 18 - justification
Back to basics 14 - Keywords
Convert Roman to Arabic Numerals
Back to basics 12 - Input Arguments
Back to basics 20 - singleton dimensions
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