Re: help I'm drowning in derivative

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#795

From: Luis A. Dissett
Date: Thu, 21 Dec 1995 00:00

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In article <4bbqia$cv0@Kaos.deepcove.com> robewood@deepcove.com (Robert Morewood) writes:

>  :   lim (1-x)^ln(x)               (x goes to 1)
> 
> I hope you meant to say 'x goes to 1 from below'.
> This expression has problems for x bigger than one!

Namely, that the basis (1-x) becomes negative when x>1. Powers with negative
basis and non-integer exponent are not defined as reals (example: -1^0.5 = i,
the immaginary unit).

Luis

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From: ldissett@qew.cs.toronto.edu (Luis A. Dissett)
Subject: Re: help I'm drowning in derivative
Date: 1995/12/21
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