*To*: mathgroup@smc.vnet.net*Subject*: [mg12116] Re: [mg12042] Sqrt Problems*From*: "Clemens Frey" <Clemens.Frey@uni-bayreuth.de>*Date*: Mon, 27 Apr 1998 01:46:03 -0400

-----Original Message----- From: PAUL REISER <REISER@HRTS.NRL.NAVY.MIL> To: mathgroup@smc.vnet.net Subject: [mg12116] [mg12042] Sqrt Problems > >Forgive me if this is a simple question, but I am trying to get "1" out >of the following expression and I can't seem to figure out how: > > u = Sqrt[a+I*b/a] * Sqrt[a^2+I*b] / Sqrt[a] > Paul , I suppose the following holds u = Sqrt[ (a^2+I*b)/a * (a^2+I*b) / a] = +- (a^2+I*b / a) so even with a pencil - you won't get 1. Clemens