If my over-use of str2num has in any way caused offense, I hereby beg leave to apologize.
My hat's off to you for such a solution. I'm baffled as to how to decode it (pun intended). I know that there has been a lot of furor over the use of regexp and other string-based functions, conversions, etc. to lower solution sizes for problems in general, but this problem is string-based, so I see no problem in solving it via arcane string methods.
Back to basics 5 - Clipboard
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Fix the last element of a cell array
Van Eck's Sequence's nth member
Scrabble Scores - 4
Lights Out 2 - 5x5, 4 moves
Divisible by n, Composite Divisors
Cycling — Normalized Power
Scrabble Scores - 5
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