```Date: Jul 12, 2011 12:35 AM
Author: mbalover9@gmail.com
Subject: Re: dirac delta function is not a TRUE function??

On Jul 11, 7:36 pm, Gerry Myerson <ge...@maths.mq.edi.ai.i2u4email>wrote:> In article> <4c1e3a16-63c5-470a-b617-8528f4005...@u6g2000prc.googlegroups.com>,>>  MBALOVER <mbalov...@gmail.com> wrote:> > Hi all,>> > From WIKI, I learn that dirac delta function is not a true function.> > However, I do not understand the explanation in WIKI and still get> > confused, why it is not a TRUE function.>> > Could you please help me to understand it?>> > Thank you.>> A function from a set A to a set B is an assignment of> an element of B to each element of A.>> If A and B are not specified, it is often assumed that both> are taken to be the set R of real numbers.>> The Dirac delta function does not assign a real number to zero,> and is thus not a true function.>> --> Gerry Myerson (ge...@maths.mq.edi.ai) (i -> u for email)Thanks Gerry. But I am still confused. I think at x = 0, delta(x) =infinity. If so, y = -log(0) = + infinity too. Is y = - log(x) Not atrue function?Thanks
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