Re: A Problem with Simplify

*To*: mathgroup at smc.vnet.net*Subject*: [mg87603] Re: A Problem with Simplify*From*: Alexey Popkov <popkov at gmail.com>*Date*: Mon, 14 Apr 2008 05:43:40 -0400 (EDT)*References*: <ftkb7f$a9m$1@smc.vnet.net>

On Apr 10, 10:14 am, "Kevin J. McCann" <Kevin.McC... at umbc.edu> wrote: > I have the following rather simple integral of two sines, which should > evaluate to zero if m is not equal to n and to L/2 if they are the same. Try the following: Integrate[Exp[(a - 1)*x], x] /. a -> 1 Integrate[Cos[(a - 1)*x], x] /. a -> 1 Integrate[(a - 1)^x, {x, -1, 0}] /. a -> 1 Integrate[Cos[a x]/Sin[x], x] /. a -> 1 There is the ONE underlying BUG! In some complicated cases this bug may result in random partial answers. http://forum.ru-board.com/topic.cgi?forum=5&topic=10291&start=80#9

**Follow-Ups**:**Re: A Problem with Simplify***From:*Alexey Popkov <popkov@gmail.com>

**Re: A Problem with Simplify***From:*Alexey Popkov <popkov@gmail.com>

**Re: A Problem with Simplify***From:*Alexey Popkov <popkov@gmail.com>

**Re: Re: A Problem with Simplify***From:*Daniel Lichtblau <danl@wolfram.com>