Re: Declaring real variables using Element
- To: mathgroup at smc.vnet.net
- Subject: [mg63462] Re: [mg63427] Declaring real variables using Element
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Sun, 1 Jan 2006 01:16:19 -0500 (EST)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <200512311140.GAA27989@smc.vnet.net>
- Reply-to: murray at math.umass.edu
- Sender: owner-wri-mathgroup at wolfram.com
Try: ComplexExpand[ Conjugate[I S] ] GidiL wrote: > 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 > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305