Notation Question: Constraining N to an Interval [-a,+a]

[WCMU101]

Hey all, I'm working on a derivation at the moment and I'm just wondering how I can write this mathematically. I've attached by current attempt (see attachment).

What I'm trying to say is:

N is an integer and is constrained to an interval of [-a,+a], where a is real.

Is my 'syntax' correct? Is there anything I should change / make better?

Any help would be greatly appreciated!

Thanks.

Nick.

 

[micromass]

I think the notation is alright!

 

[WCMU101]

Thanks micromass!