Limit Problem
- To: mathgroup at smc.vnet.net
- Subject: [mg17199] Limit Problem
- From: "Arturas Acus" <acus at itpa.lt>
- Date: Mon, 26 Apr 1999 01:20:41 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Hello,
I was unable to get the rezult of the following
simple example (looks like an infinite loop)
<< Calculus`Limit`
Limit[Integrate[q^2*r^2*(Cos[q*r] - Sin[q*r]/(q*r)), r],r -> Infinity]]
Another question is the similar integral
Integrate[r^2*(Cos[q*r] - Sin[q*r]/(q*r)), {r,
0,Infinity},Assumptions->Im[q]==0]
Mathematica gives zero here, but we were expecting
something proportional to DiracDelta here.
Dr. Arturas Acus
Institute of Theoretical
Physics and Astronomy
Gostauto 12, 2600,Vilnius
Lithuania
E-mail: acus at itpa.lt
Fax: 370-2-225361
Tel: 370-2-612906