Re: Canceling square roots with Simplify

*To*: mathgroup at smc.vnet.net*Subject*: [mg18233] Re: [mg18211] Canceling square roots with Simplify*From*: Haiduke Sarafian <has2 at psu.edu>*Date*: Thu, 24 Jun 1999 14:24:16 -0400*Sender*: owner-wri-mathgroup at wolfram.com

At 08:41 PM 6/22/99 -0400, efarr wrote: >Hello, > >Try typing in the following in a new session of Mathematica (I'm currently >running ver 3.0 under WinNT). > >Simplify[ Sqrt[b^2]*Sqrt[1/b^2] ] > >It seems like the b's should cancel, and I should get 1. Why don't I? Is >there any workaround? > >Thanks very much > >Everett G. Farr > Try PowerExpand instead of Simplify e.g. PowerExpand[Sqrt[b^2]*Sqart[1/b^2]] this simplifies to 1. Cheers