Nice test cases!
With a more robust Test Suite many/most of the submissions would fail for ignoring the Problem Statement instruction that primes must be less than n. Please add test cases in which the input x (or "n") is itself a prime.
Make one big string out of two smaller strings
Perfect Square or not
Convert Fahrenheit to Celsius
Matrix of almost all zeros, except for main diagonal
Find the nearest prime number
Energy of an object
Roots of a quadratic equation.
kmph to mph converter
Linear system of equations
Display negative numbers
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