this is the commented version of my previous entry (solution 181910)
this is my original submission modified for ease of reading
whoops, didn't see your thing about "easy to understand code."
Back to basics 12 - Input Arguments
Back to basics 17 - white space
Back to basics 22 - Rotate a matrix
Generate a NaN...on purpose
Poker Series 02: isQuads
Flag largest magnitude swings as they occur
Poker Series 05: isStraight
Convert a vector into a number
Project Euler: Problem 7, Nth prime
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