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.
Who is the smartest MATLAB programmer?
Sum the numbers on the main diagonal
06 - Matrix Equations 3
Sum the 'edge' values of a matrix
Find the area of a triangle
Check if is a square
Get the value 100
Double the next and alternate sign
Alternate list of elements
Say type of roots in quadratic equation
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