This looks much (c)leaner than the REGEXP method.
while on the topic of 'undocumented trivia that will earn you a couple of cody points for no good reason', have you seen this one?
I believe this is the very first use of the Ans Hack in Cody. See http://blogs.mathworks.com/community/2016/06/23/the-great-ans-hack/
interesting use of strread to turn a string into a cell array (though probably only really useful in cody)
Kids, don't try this at home. :-)
This solution was proposed by Oleg Komarov.
Remove the polynomials that have positive real elements of their roots.
Test if a Number is a Palindrome without using any String Operations
Back to basics 7 - Equal NaNs
Bang Bang in Bangalore
Back to basics 25 - Valid variable names
Spot the outlier
How long is the longest prime diagonal?
Twins in a Window
Twist 'n' Match
Breaking Bad Tiles (Spelling with Element Symbols)
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