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I have this question in the book whether a signal is Power Signal or Energy Signal.

From what I have read signal is an energy one if its time-averaged power is = 0, or its non periodic.

For non-periodic signal

V(t) [tex] \neq[/tex] V(t+T)

I tried to prove that

[tex]V(t) = 230\sqrt{2} Sin (100\pi t)[/tex]

is non-periodic.

So I picked random values for t=1 and T=1, and I got this eqn:

[tex]230\sqrt{2} Sin (100\pi)=230\sqrt{2} Sin (100\pi+1)[/tex]

Which states that it's non-periodic, ie V(t) is an energy signal.

Now I have an impression that this is not right. Can anyone help me? Book I have is no good with examples.

Plus if anyone could send me a link where there are some examples with Energy, Power, Periodic and Non-Periodic signals?

I'm using "Signals and Systems" by S. Haykin and B. Van Veen.

Thanks guys!