Re: A Problem with Integrate
- To: mathgroup at smc.vnet.net
- Subject: [mg61923] Re: [mg61895] A Problem with Integrate
- From: "fizzy" <fizzycist at knology.net>
- Date: Fri, 4 Nov 2005 05:12:05 -0500 (EST)
- References: <200511031031.FAA27336@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
I tried this in 4.2 and get a result....whether its correct or not I dont
know but you get an output with Ei functions....I'd like to add that I have
tried other integrals, primarily definite integrals, that work in 4.2 but
not in 5.2 or rather at least give an output in 4.2........
----- Original Message -----
From: "Kevin J. McCann" <kmccann at umbc.edu>
To: mathgroup at smc.vnet.net
Subject: [mg61923] [mg61895] A Problem with Integrate
> When I try the following indefinite integral:
> Integrate[1/(E^t*(t^3*(-1 + Î¼*t))), t]
> under 5.2, I get
> Power::infy : Infinite expression 1/0^2 encountered. More ...
> That is, it somehow gets 1/0^2, and returns an answer of zero. On the
> other hand, if I leave out the exponential and just integrate
> Integrate[1/(t^3*(-1 + t*Î¼)), t]
> It works just fine. A plot of the integrand and a numerical integration
> works, just the symbolic chokes.
> Any ideas would be appreciated.
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