I really don't see the point of that kind of problems where you can't use Matlab built-in functions.
Find the numeric mean of the prime numbers in a matrix.
Spot the outlier
convert matrix to single column
Cody Computer Part 2 - Get the license number of Cody Computer
Convert a numerical matrix into a cell array of strings
Remove the two elements next to NaN value
Return unique values without sorting
Create a vector whose elements depend on the previous element
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