Doddy, the test suite does not check that the numbers are prime and five-digit. I recommend including assert(all(isprime(a)) && all(a > 9999 & a < 1e5)).
@ChrisR: your suggested tests have been added.
Select every other element of a vector
Inner product of two vectors
Compare two input matrices
Sum of series II
Determine the mean of matrix
Number Puzzle - 117
Lateral Area of a Right Rectangular Pyramid
Number Puzzles - 017
Find the Pattern 6
Number Puzzle - 112
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