If my over-use of str2num has in any way caused offense, I hereby beg leave to apologize.
My hat's off to you for such a solution. I'm baffled as to how to decode it (pun intended). I know that there has been a lot of furor over the use of regexp and other string-based functions, conversions, etc. to lower solution sizes for problems in general, but this problem is string-based, so I see no problem in solving it via arcane string methods.
Find the sum of all the numbers of the input vector
Remove NaN ?
What is the distance from point P(x,y) to the line Ax + By + C = 0?
Length of the hypotenuse
Must be in the front row...
Scrabble Scores - 2
Scrabble Scores - 9
Calculator spelling - Numbers to Letters
Rule of mixtures (composites) - either bound
Divisible by n, prime divisors from 20 to 200
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