Improper integral
- To: mathgroup at smc.vnet.net
- Subject: [mg37801] Improper integral
- From: flavionet at libero.it (Flavio Cimolin)
- Date: Wed, 13 Nov 2002 01:11:47 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi, I have a problem with the following improper integral:
Integrate[x^a Log[x]/(x^2+1),{x,0,+Infinity}]
which I know doesn't give 0 for {-1<a<1}.
Why is the result wrong?
For example:
NIntegrate[x^.5 Log[x]/(x^2 + 1), {x, 0, 100000}]
give 3.40397
What's wrong with that?
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