Function names cannot begin with a number. Also, this is an extremely simple problem that has been posted many times. Please put more thought into problems before posting them.
I changed the problem slightly and added some more test cases.
Find all elements less than 0 or greater than 10 and replace them with NaN
Is my wife right? Now with even more wrong husband
Sum all integers from 1 to 2^n
Pi Estimate 1
Wind Chill Computation
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