A bug in Integrate ?
- To: mathgroup at smc.vnet.net
- Subject: [mg56321] A bug in Integrate ?
- From: "Stepan Yakovenko" <yakovenko-mg at ngs.ru>
- Date: Fri, 22 Apr 2005 06:22:46 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hello !
Strange, but
Integrate[Exp[-x]UnitStep[-x], {x, a, Infinity}]
calculates integral right, but
-Integrate[Exp[-x]UnitStep[-x], {x, Infinity, a}]
says that it doesn't converge.
Can anyone comment this ?
Thanx.