What does -- do?

I've noticed -- appears fairly often in formula but not sure how to use it. Can anyone enlighten me or direct me where can I read up on it?


Thank you

Do a search within this group on "double unary operator", and you'll
find many explanations.

See

http://www.mcgimpsey.com/excel/doubleneg.html

In article <[email protected]>,
Morrigan <[email protected]>
wrote:

> I've noticed -- appears fairly often in formula but not sure how to use
> it. Can anyone enlighten me or direct me where can I read up on it?
>
>
> Thank you