O(sin n), Ω(sin n), Θ(sin n) complexity

[ulita]

Hello , Do you know examples of functions belonging crowds O(sin (n)), Ω (sin (n)), Θ (sin (n)) ?

 

[mathman]

You could define what those terms mean.

 

[CRGreathouse]

http://mymathforum.com/viewtopic.php?f=44&t=15362

 

[disregardthat]

I'm quoting (presumably) you from your link:

it's easy to see that (among others) all positive functions are in Ω(sin n).

Are you sure about this? What about $$f(n) = 2^{-n}$$ ?

Positive functions with a global minimum would be one class of functions which belongs to Ω(sin n).