
Re: How to get the Real and Imaginary part of an expression
Posted:
Jan 5, 2013 2:17 AM


Re and Im work for me, here is what I tried, giving values to s and z:
Module[{w, s, z}, s = 5 + 3 I; z = 12  2 I; (w = 882)/(s^2 + 2*z*w*s + w^2) ] Re[%] Im[%%]
Perhaps I do not understand your question.
On Wed, Jan 2, 2013 at 6:16 PM, Eduardo M. A. M. Mendes < emammendes@gmail.com> wrote:
> Hello > > I need to extract the real and imaginary part of the following expression > > (w=882)/(s^2+2*z*w*s+w^2) > > where w and z are positive constants. s is a complex variable. > > Applying Re and Im to the expression does not do much. By hand, one can > easily find them. > > What am I missing? > > many thanks > > Ed > > > >

