MathGroup Archive 1997

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: wierd Log[0] *0 result

Patrick Tao wrote:
> Hello mma users,
> I have a quick question on the following computation:
> the natural log of 0 times 0 writen Log[0]*0
> Should that not be 0 ?
> mma is returning an Indeterminate result

 mma evaluates that as -Infinity times Zero and 
 doesn't know what kind of Infinity and what
 kind of Zero it is dealing with.

You should use something like

   Limit[x Log[x], x ->0]

which dous yield 0.

Cheers, Bill

  • Prev by Date: Re: list manipulation problem
  • Next by Date: Help with GraphicsArray
  • Previous by thread: Re: wierd Log[0] *0 result
  • Next by thread: Re: wierd Log[0] *0 result