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From: gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>)
Newsgroups: net.puzzle
Subject: Re: Derivative of x! and actual interviews
Message-ID: <9746@brl-tgr.ARPA>
Date: Fri, 5-Apr-85 16:36:17 EST
Article-I.D.: brl-tgr.9746
Posted: Fri Apr  5 16:36:17 1985
Date-Received: Mon, 8-Apr-85 00:19:57 EST
References: <1337@decwrl.UUCP>, <383@cavell.UUCP> <441@hou2g.UUCP>
Organization: Ballistic Research Lab
Lines: 8

> > The necessary and sufficient condition for the derivative of a function
> > to be defined is that the function should be continuous (and x! is not).

Another example of testers not being smart enough.  I used to get into
arguments with IQ testers, who would pose such stupid questions as:

	What is the next number in the series
		2, 3, 5, 7, ...