Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2005
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2005

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

Search the Archive

Re: limit problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg58942] Re: [mg58910] limit problem
  • From: stephen layland <layland at wolfram.com>
  • Date: Sun, 24 Jul 2005 01:22:01 -0400 (EDT)
  • References: <200507230932.FAA29066@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

and thus spake Chris Chiasson [2005.07.23 @ 05:08]:
> Dear MathGroup,
> Honestly, I see no reason why this should return "unevaluated" instead of zero.
> 
> FullSimplify[Limit[E^(-R t),t\[Rule]Infinity],Infinity>R>0&&Element[R,Reals]]

I do.  Limit doesn't know anything about R and FullSimplify only applies
known transformation rules (which, to my knowledge, don't mess with
expressions of head Limit[]) to the expression passed in.  

Pass Assumptions to Limit instead.

--
/*------------------------------*\
|        stephen layland         |
|    Documentation Programmer    |
| http://members.wri.com/layland |
\*------------------------------*/


  • References:
  • Prev by Date: Re: New to Mathematica- How to write functions????????
  • Next by Date: Re: problem with Delete[]
  • Previous by thread: limit problem
  • Next by thread: Re: limit problem