Date: Jul 12, 2011 12:35 AM
Subject: Re: dirac delta function is not a TRUE function??
On Jul 11, 7:36 pm, Gerry Myerson <ge...@maths.mq.edi.ai.i2u4email>
> In article
> 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 a