This solution is outdated. To rescore this solution, sign in.
Back to basics 15 - classes
select the primes of a vector
The sum of the numbers in the vector
Extra safe primes
Replace NaNs with the number that appears to its left in the row.
Return the 3n+1 sequence for n
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office