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Shortest solution (so far) that keeps to the spirit of the challenge. Code is also easy to read.
Another short solution that keeps to the spirit of the challenge.
Back and Forth Rows
Find the numeric mean of the prime numbers in a matrix.
So many choices
Back to basics 22 - Rotate a matrix
Determine the square root
Divisible by n, prime divisors (including powers)
Pattern Recognition 3 - Variable Unit and Array Length (including cell arrays)
Calculator spelling - Numbers to Letters
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