What is the periodicity of $e^{j\omega n}$ when $\omega=0$?

1. How do you find the periodicity of a signal?
2. How do you find the periodic and aperiodic signals?
3. Is sin 3n periodic?
4. How do you find the period of a discrete function?

How do you find the periodicity of a signal?

If a signal is periodic, it repeats after a fixed time period which is known as the period T. So if the function of a periodic signal is x(t), it should be the same signal after changing the time period by period T₀. by substituting integer values for n.

How do you find the periodic and aperiodic signals?

A signal is said to be periodic signal if it has a definite pattern and repeats itself at a regular interval of time. Whereas, the signal which does not at the regular interval of time is known as an aperiodic signal or non-periodic signal.

Is sin 3n periodic?

A sinusoidal signal (such as sin) is indeed always periodic.

How do you find the period of a discrete function?

Concept: A discrete-time signal is periodic if there is a non-zero integer N ∈ discrete-time such that for all n ∈ discrete-time, x(n + N) = x(n). The smallest value of N is known as the fundamental period. The signal repeats after every N value.