Is there any signal which is periodic in Continuous Time but not in Discrete Time?
I have this doubt prevailing in me for a long time.
Are all CT periodic signals periodic in DT?
If so, how is sin wave a periodic signal? It is periodic only at intervals of pi radians, which is an irrational number and not an integer.
But for a DT signal to be periodic shouldn't the signal be periodic at discrete intervals of time?