Good problem. :) That's something that they don't teach at schools or universities. Not fractional powers anyway.
Sums with Excluded Digits
Rotate input square matrix 90 degrees CCW without rot90
Number of odd and even elements within matrix
Sum of diagonals elements of a matrix
Sum of odd numbers in a matrix
Get ranks of values in a vector
Two-output anonymous function?
Apply a function array to an array of numbers
Replace multiples of 5 with NaN
Count up then down
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