Re: Problems with solving integrals in Mathematica 9

*To*: mathgroup at smc.vnet.net*Subject*: [mg131005] Re: Problems with solving integrals in Mathematica 9*From*: "Dave Snead" <dsnead6 at charter.net>*Date*: Sun, 2 Jun 2013 00:31:34 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-outx@smc.vnet.net*Delivered-to*: mathgroup-newsendx@smc.vnet.net*References*: <20130601102628.B6E6B69C7@smc.vnet.net>

You are correct! Evaluates the integral in 8.04. Fails to evaluate the integral in 9.01. Looks like a bug. -- Dave Snead -----Original Message----- From: Jost Adler Sent: Saturday, June 01, 2013 3:26 AM To: mathgroup at smc.vnet.net Subject: [mg131005] Problems with solving integrals in Mathematica 9 Has anybody encountered the same problems with solving integrals in Ver. 9 as I did? Here a very simple example: Integrate[D[f[x], x] / f[x], {x, 0, T}] Version 8.04 gives the correct results: -Log[f[0]] + Log[f[T]] In Version 9.00 as well as 9.01 this integral can't be solved. With more complicated integrals I had the same problems. Version 8 gives a solution, Version 9 doesn't! Could some other Version 9 users try it.

**References**:**Problems with solving integrals in Mathematica 9***From:*Jost Adler <jost.adler@googlemail.com>