Create a cell array of strings containing the first n natural numbers. Slightly harder than it seems like it should be.
>> y = naturalnumbers(4)
'1' '2' '3' '4'
Back to basics 6 - Column Vector
Spot the outlier
Set the array elements whose value is 13 to 0
02 - Vector Variables 3
Determine the square root
Split a string into chunks of specified length
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