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why greek "pi" exists in cutting speed calculation?
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Larry Jaques
Posts: n/a
why greek "pi" exists in cutting speed calculation?
On Sun, 30 Nov 2003 07:00:16 GMT,
(Barry
Jarrett) brought forth from the murky depths:
On 27 Nov 2003 01:07:55 -0800,
(natarajan ayyavu)
wrote:
I do not understand why greek pi (value = 3.1428) presents in this
formula
the last time i checked, pi was 3.14159......
Surely he was using the metric value of pi, Barry.
Any Brits out there care to share the Whitworth value?
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