Re: error message
- To: mathgroup at smc.vnet.net
 - Subject: [mg5152] Re: error message
 - From: haberndt at dnai.com (Harald Berndt)
 - Date: Wed, 6 Nov 1996 01:33:32 -0500
 - Organization: DNAI ( Direct Network Access )
 - Sender: owner-wri-mathgroup at wolfram.com
 
In article <54kal9$d6r at dragonfly.wolfram.com>, gt1824a at prism.gatech.edu
(Heather Mary Hauser) wrote:
> [ ... some stuff cut ... ]
> "FindRoot::frnum:Function{{-0.00004794 - 0.000020387I}} is not a length 1
> list of numbers at {r} = {0.15I}" .
> [ ... more stuff cut ... ]
I'd need to see more of the definition of the function to find out what's
wrong, but clearly
  
   {{-0.00004794 - 0.000020387I}}
is not a length 1 list of numbers, but a list of length 1 of lists of
length 1 (the double braces). For some reason, your function returns a
list of results. Use Flatten[] or First[] somewhere to get to {-0.00004794
- 0.000020387I}.
-- 
Harald Berndt, Ph.D.                            Research Specialist,
Voice: 510-652-5974                                      Consultant
FAX:   510-215-4299