Re: limit problem
- To: mathgroup at smc.vnet.net
- Subject: [mg58943] Re: limit problem
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Sun, 24 Jul 2005 01:22:02 -0400 (EDT)
- Organization: The Open University, Milton Keynes, England
- References: <dbt3lm$sk4$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Chris Chiasson wrote: > 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]] > > 5.2 on windows > > Regards, Hi Chris, The following works: In[1]:= Limit[E^(-t), t -> Infinity] Out[1]= 0 In[2]:= Limit[E^((-R)*t), t -> Infinity] Out[2]= Limit[E^((-R)*t), t -> Infinity] In[3]:= Assuming[R > 0, Limit[E^((-R)*t), t -> Infinity]] Out[3]= 0 Best regards, /J.M.