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.
Is X a Fibonacci Matrix?
Reverse a matrix
Sum of the Matrix Elements
Add offset to a signal
Lights Out 28 - 3x3x3, x moves
Lights Out 13 - 5x5, three stages, x moves
Equation Times (of the day)
Approximation of Pi (vector inputs)
Large Sum (inspired by Project Euler 13)
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