This thread has gone downhill in terms of quality over the last few posts.
Please amend.
:-Y
This is the sort of thing I like learning about. :D
There must some sort of graph that can be drawn.
There is. It looks like a bell. :Y
HTH.
"Wow, I thought KG showed up for a second!"
Yeah, I borrowed his sig' graphic. I'm sure he periodically lurks, then thinks to himself "this place is like a den of wild ferrets" or some such thing. :D