The problem description is broken(?) and you have mentioned the code in the test suite (you might want to remove that)
The test suite has had the "solution" code removed. The description was also cleaned up. (If it's not loading, simply reload the page.) I'm not sure how much these fixes help, though...
Extract leading non-zero digit
Factorize THIS, buddy
Create a vector whose elements depend on the previous element
05 - Vector Equations 3
Tony's trick for duplicating an mx1 vector n times
Convert a Cell Array into an Array
remove nans fast
Magic Concentric Circles
Create numeric palindromes and their square roots
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