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findroot problem

  • To: mathgroup at smc.vnet.net
  • Subject: [mg15568] findroot problem
  • From: Sven Bode <bode at physik.fu-berlin.de>
  • Date: Tue, 26 Jan 1999 13:44:46 -0500 (EST)
  • Organization: Freie Universit├Ąt Berlin
  • Sender: owner-wri-mathgroup at wolfram.com

Hi folks,

I get an findroot error message which gives no clue (at least to me) to
correct the my statement
(FindRoot[2 Pi - Phi[x]== PhiC[0, x]+ 2 Kappa[x]*(zc - zb), {x, 4} ]
FindRoot::"frnum": 
    "Function (3.69495079385213065`  - 1. (ArcTan[(0.692041522491349425]
(<<1>>) is not a length (1) list of numbers at {x} = {4.`}

Sorry not easy readable, but i can send an attachment if it is wanted in
a newsgroup.
I'm happy for any useful hint. 
-- 
Dr. Sven Bode                           Email:
Sven.Bode at physik.fu-berlin.de
Depart. of Physics                     Tel.:  ++49 (0)30 838 3336 /6149	
Freie Universitaet Berlin           Fax :  ++49 (0)30 838 6560
Arnimallee 14, 14195 Berlin


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