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Complex functions

  1. May 24, 2010 #1
    Hi, just wondering where this line comes from

    [PLAIN]http://img514.imageshack.us/img514/4990/complq.jpg [Broken]

    Here's my beef:

    If we evaluate it at z=z_0, why are there still 'z's in (2.11)?
    Furthermore, isn't the congujate of f=u( )+iv( ) simply u( )-iv( )?

    The formula seems to have been evaluated at z* = z*_0.

    Not sure what's going on.
    Thanks
    [edit]
    If this belongs in the homework thing forum place, sorry. Please move it.
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. May 24, 2010 #2
    if z = z_0 in eq. 2 then it makes sense.

    f*(z) =/= f(z*)

    seems correct. not sure what the question is :p
     
  4. May 24, 2010 #3
    Why are there still z's in the 2nd equation?
    as in, shouldn't they all be z_0s now?

    [edit]
    I think the author has 'barred' the arguments because they are real, after setting z=z_0 and leaving z* as it is.
     
    Last edited: May 24, 2010
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