MathGroup Archive: July 2002 [00388]

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Re: Limit[Sin[a*x]/(a*x), x -> Infinity]

To: mathgroup at smc.vnet.net
Subject: [mg35588] Re: Limit[Sin[a*x]/(a*x), x -> Infinity]
From: timreh719 at yahoo.com.tw (bryan)
Date: Sun, 21 Jul 2002 01:01:06 -0400 (EDT)
References: <ah8otr$aut$1@smc.vnet.net>
Sender: owner-wri-mathgroup at wolfram.com

Hi All :
   I am also interesting in the solution of how to make an asumption
in Mathematica. I can't find any method in Mathematica. If anybody has
the approch to do this , please send it to my e-mail too , Thank you all ..

j_m_1967 at hotmail.com (JM) wrote in message news:<ah8otr$aut$1 at smc.vnet.net>...
> I know that this should be 0 but why can't I get mathematica to think
> likewise.
> 
> 
> In[4]:= Limit[Sin[a*x]/(a*x),x->Infinity]
> 
>               Sin[a x]
> Out[4]= Limit[--------, x -> Infinity]
>                 a x
> 
> Is the problem a? How can I specify the properties of or assumptions
> that may be made about a?

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