Re: Problem with "Which"

*To*: mathgroup at smc.vnet.net*Subject*: [mg122242] Re: Problem with "Which"*From*: mbmb <sb at 9y.com>*Date*: Sat, 22 Oct 2011 06:06:21 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com

I thought Re[z] gives the Real part of a complex number. I don't want that, I only want solution from the domain of real numbers. Union is a nice command :-)