Kevin Wampler wrote:

> That said, I'm not sure it's necessary to actually understand the proper 
> definition of distance in order to talk about circles in other spaces -- 
> particularly if we limit ourselves to spherical and hyperbolic spaces 
> which are more or less easy to visualize.

Actually, I was thinking of actual real space, where the same distances are 
different depending who is measuring them. What's a circle for me isn't a 
circle for you, so I find it hard to imagine a good definition for "pi" 
under such circumstances.

-- 
Darren New, San Diego CA, USA (PST)
   Forget "focus follows mouse." When do
   I get "focus follows gaze"?

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