Except that Pi is defined as a geometrical constant for ideal circles
in Euclidean 2D space. Trying to say that measurement limits you to
defining Pi to a certain number of digits is like saying that we
cannot really tell if the ratio from radius to diameter is exactly
2.000000000.....

Sean


On Fri, Jul 17, 2009 at 1:37 PM, Olin Lathrop<olin_piclist@embedinc.com> wr=
ote:
> John Gardner wrote:
>>> =A0I'm looking forwards to the day when they discover the point beyond
>> =A0 =A0which all subsequent digits of Pi are zero :-)
>
> Already here. =A0The point at which that happens, however, depends on the
> accuracy you can measure with. =A0If your limit is measuring one cycle of
> earth's orbit to within 1mm, then the zeros start at the 16th digit past =
the
> decimal point. =A0In other words Pi =3D
> 3.1415926535897930000000000000000000000000000... =A0And even if I'm wrong=
, the
> point is you can't tell.
>
>
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