Integrate[(1 - Exp[-kel*t]), {t, 0, Infinity]?=-1/kel
- To: mathgroup at smc.vnet.net
- Subject: [mg24383] Integrate[(1 - Exp[-kel*t]), {t, 0, Infinity]?=-1/kel
- From: GyA Csanady <csanady at gsf.de>
- Date: Wed, 12 Jul 2000 23:13:23 -0400 (EDT)
- Organization: gsf
- Sender: owner-wri-mathgroup at wolfram.com
Dear MathGroup,
I integrated the function (1 - Exp[-kel*t]) between zero and Infinity by
using Mathematica 4 and assuming that kel is positiv:
Integrate[(1 - Exp[-kel*t]), {t, 0, Infinity}, Assumptions -> kel > 0]
Mathematica resulted in a finite integral being ?1/kel.
This result is obviously wrong since the function investigated does not
have a finite integral. However I am not sure what is wrong.
Any help will be appreciated.
With best regards
Gy. Csanady