Declaring real variables using Element

*To*: mathgroup at smc.vnet.net*Subject*: [mg63427] Declaring real variables using Element*From*: "GidiL" <gidienator at gmail.com>*Date*: Sat, 31 Dec 2005 06:40:25 -0500 (EST)*Sender*: owner-wri-mathgroup at wolfram.com

Hello to all! I am trying to declare the variable S to be real, using the Element command: Element[S, Reals] Next I calculate the complex conjugate of IS (I is the imaginary unit) Conjugate[\[ImaginaryI] S] The result I get is -\[ImaginaryI] Conjugate[S] which should have been -IS. Why does it not recognise S as a real variable? I would appreciate any help. Thanks, Gideon