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.
Omit columns averages from a matrix
Back to basics 22 - Rotate a matrix
Max index of 3D array
sum of first 'n' terms
length of a vector
Highly divisible triangular number (inspired by Project Euler 12)
Divisible by 5
Mersenne Primes vs. All Primes
Radiation Heat Transfer — View Factors (3)
Not square-free number sequence
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