Re: Integrate bug in v 9.0.0

*To*: mathgroup at smc.vnet.net*Subject*: [mg129686] Re: Integrate bug in v 9.0.0*From*: Bob Hanlon <hanlonr357 at gmail.com>*Date*: Mon, 4 Feb 2013 01:20:17 -0500 (EST)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net*References*: <keiaug$qqn$1@smc.vnet.net>

$Version "9.0 for Mac OS X x86 (64-bit) (January 24, 2013)" The use of Apart isn't necessary Integrate[x^2/(x^2 - x0^2), {x, x1, x2}, Assumptions -> x0 > x2 > x1 >= 0, GenerateConditions -> False] -x1 + x2 + x0 ArcTanh[(x0 (x1 - x2))/(x0^2 - x1 x2)] Assuming[ x0 > x2 > x1 >= 0, Integrate[ x^2/(x^2 - x0^2), {x, x1, x2}, GenerateConditions -> False]] -x1 + x2 + x0 ArcTanh[(x0 (x1 - x2))/(x0^2 - x1 x2)] Bob Hanlon On Sun, Feb 3, 2013 at 8:20 PM, DC <b.gatessucks at gmail.com> wrote: > Not fixed in 9.0.1 but it works with : > > Integrate[Apart[x^2/(x^2 - x0^2)], {x, x1, x2}, > Assumptions -> x0 > x2 > x1 >= 0, GenerateConditions -> False] > > (* -x1 + x2 + x0 ArcTanh[(x0 (x1 - x2))/(x0^2 - x1 x2)] *) > >