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'.
Summing Digits within Text
Encode Roman Numerals
Back to basics 18 - justification
Angle between Two Vectors
Create a vector
Check if is a square
Alternating 1´s and 0´s in a matrix
Approximate the inverse tangent by power series
Sum of a geometric series
Double the next!
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