[seqfan] Re: What was Euler's original notation for the totient function?
Robert Israel
israel at math.ubc.ca
Tue Jun 8 03:30:22 CEST 2010
This is mentioned in Dickson's "History of the Theory of Numbers". See
p. 128 of Lehmer's review of Dickson,
<http://projecteuclid.org/euclid.bams/1183425137>.
Robert Israel israel at math.ubc.ca
Department of Mathematics http://www.math.ubc.ca/~israel
University of British Columbia Vancouver, BC, Canada
On Mon, 7 Jun 2010, Alonso Del Arte wrote:
> I read somewhere that at first Euler notated his famous totient function as
> pi(n) rather than phi(n). But now I can't remember what that book was. Maybe
> it was a biography of Euler, but I haven't read many biographies from
> beginning to end. Anyway, I would appreciate any book that says what Euler's
> original notation was.
>
> Al
>
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