Hello, I have got a question about the periodicity of a function. I know that in discrete domain, a periodic function have to verify x[n] = x[n+N] where N is the positive integer and foundamental period. My problem is that if I have a function like this: e^(j3π(n+1/2)/5), how can I confirm if that the function can be periodical? I attemted to use the Euler equivalent, but still no solution came to my mind. Thank you!