Write a function to find the 5th root of a number.
It sounds easy, but the typical functions are not allowed (see the test suite), so you'll need to find a non-standard method to solve the problem.
Find common elements in matrix rows
Are you in or are you out?
Remove the two elements next to NaN value
Replace Vector Elements
Largest Twin Primes
Divisible by 13
Self-similarity 2 - Every third term
Stress-Strain Properties - 3
Rule of mixtures (composites) - weighted bound
Scrabble Scores - 4
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