When a zero isn't zero (math quote) - sci.math

Message from discussion When a zero isn't zero (math quote)

Dave L. Renfro

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More options Nov 4 2009, 7:14 pm

Newsgroups: sci.math

From: "Dave L. Renfro" <renfr...@cmich.edu>

Date: Wed, 4 Nov 2009 11:14:42 -0800 (PST)

Local: Wed, Nov 4 2009 7:14 pm

Subject: When a zero isn't zero (math quote)

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O-K, this may be a well-known folklore math quote,
but a google-web search gives only 2 hits (both being
the same book) and a google-book search gives only
7 hits (5 essentially different items, one of which
is the google-web hit I got):

"A zero of order zero is a regular point at which the
function is not zero."

I saw this in Pi Mu Epsilon Journal [Volume 2, Number 5
(Fall 1956), p. 224], where it's followed with "(From a
book on complex variables.)" From the google-book hits
it appears the original source is Volume 1 of Knopp's
"Theory of Functions".

Dave L. Renfro

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