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MathGroup Archive 1998

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what does error msges means?

  • To: mathgroup at
  • Subject: [mg13654] what does error msges means?
  • From: Hwee Kuan Lee <hwee+ at>
  • Date: Sat, 8 Aug 1998 01:36:27 -0400
  • Organization: Doctoral student, Physics, Carnegie Mellon, Pittsburgh, PA
  • Sender: owner-wri-mathgroup at

I am writing a mathematica program and got this error message, the first
one is pretty striaght forward and i am sure what it is, but the second
one is a little bit ambiguous. let me explain why i think so.
    Newton's method failed to converge to the prescribed accuracy after
1000 iterations.

    Further output of FindRoot :: cvnwt will be suppressed during this
my codes are :

While[ (* conditions *),
 (* other codes *)
mag[[i]] = m/.FindRoot[m==Tanh[(*some numbers *) m]
(* other codes *)
these error messages came out pretty soon in the for loop. so does that
mean that all subsequence FindRoot output will not be correct? or just
for the first few `loops' in the while loop?

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