Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
1996
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 1996

[Date Index] [Thread Index] [Author Index]

Search the Archive

error message

  • To: mathgroup at smc.vnet.net
  • Subject: [mg5057] error message
  • From: gt1824a at prism.gatech.edu (Heather Mary Hauser)
  • Date: Wed, 23 Oct 1996 01:38:16 -0400
  • Organization: Georgia Institute of Technology
  • Sender: owner-wri-mathgroup at wolfram.com

In using FindRoot to find the zeros of a function which I have defined by a 
procedure (too long to list here), I keep getting the error message 
"FindRoot::frnum:Function{{-0.00004794 - 0.000020387I}} is not a length 1
list of numbers at {r} = {0.15I}" . r = 0.15I is the first of two values I 
give to start the search, because I know that there is not a symbolic 
derivative to be found. I also know that this value is near a possible zero
because it is midway through an interval where the function changes sign. 
(both real and imaginary parts). Can anybody tell me what this error message 
means ?

Heather Hauser
heather at eas.gatech.edu
 


  • Prev by Date: Financial Problems
  • Next by Date: Re: programming comptition II
  • Previous by thread: Re: Financial Problems
  • Next by thread: Re: error message