I am working on Problem #2 in the attached PDF
The Attempt at a Solution
I am trying to understand what they are saying in (b) as far as creating the double array. Does that mean I concatenate strIn with keyL? Also, how do I remove the last few characters in keyL so that numel(keyL) == numel(strIn). I'm having a hard time getting started because I don't really understand what they are saying in the question as far as what to do.
Here is what I have so far, it's far from complete but I don't know if I should use a while statement.
function strOut = Convert(strIn,key,mode) keyL = [key key]; if mode == 1 while (numel(keyL) >= numel(strIn)) == 1 numel(keyL) == numel(strIn) for i = 1:numel(keyL)
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