test case #2 is not correct.
The problem description should be change to "and the sum of non-prime numbers up to the greatest prime lower than x".
Thank you for that clarification, @Rafael S.T. Vieira. The problem title and description have been improved, along with added test cases.
Return the 3n+1 sequence for n
Create a Multiplication table matrix...
Convert given decimal number to binary number.
Create a vector
How many Fibonacci numbers?
Sum of a geometric series
Check if is a square
Alternating 1´s and 0´s in a matrix
Alternate list of elements
Double the next and alternate sign
Find the treasures in MATLAB Central and discover how the community can help you!
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