Re: Circles and ellipses

From: Phlip <phlip_cpp_at_my-deja.com>
Date: 19 Aug 2001 03:00:11 GMT
Message-ID: <9lna3r$nq2@dispatch.concentric.net>

Richard MacDonald wrote:

> "David Cressey" <david_at_dcressey.com> wrote in message
> news:1kCf7.266$Iw2.14175_at_petpeeve.ziplink.net...

>> The entire discussion about whether a circle is an ellipse hinges on how
 you
>> define circle and ellipse.
>>
>> If you take the classical definition of an ellipse, from Euclidean
 geometry,
>> defined based on the sum of the distances from each point on the ellipse
 to
>> the two foci, then a circle is NOT an ellipse. A circle does not have
>> two foci.

>
> Oh yes it does. They're both at the same spot.

NOOOOOOOO! Abstract philosophy in pragmatic newsgroup(s)!!

EVERYONE'S A MATHEMATICIAN NOW!!!

-- 
  Phlip                          phlip_cpp_at_my-deja.com
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Received on Sat Aug 18 2001 - 22:00:11 CDT