Knowing that 123-45-67+89=100, write a function that gives this result for any order of the digits in the input. Otherwise, the function should give 'NaN'.
Remove the small words from a list of words.
Back to basics 8 - Matrix Diagonals
Sum the Infinite Series
Rotate a Matrix
Angle between Two Vectors
Ratio between sum of primes and sum of factors
Alternating 1´s and 0´s in a matrix
Get the mean digit
Check if is a square
Ratio between sum of primer numbers and non-prime numbers
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