[Tugindia] zero nbh and Power set symbol

[E. Krishnan]

On Wed, 19 Nov 2003, Bhaskaracharya Pratishthana wrote:

> This is the symbol which like shell or curve starts from point and after 
> following circular path 1 rotation then instead of closing the circle it 
> smoothly go for outer circular path...like concentric circle put not 
> exaclty circles...difficult to explain.

I still don't get it. Can you send me an image of this symbol off-list?

-- 
Krishnan