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MathGroup Archive 2000

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RE: FixedPoint vs. FixedPointList

  • To: mathgroup at smc.vnet.net
  • Subject: [mg24436] RE: [mg24384] FixedPoint vs. FixedPointList
  • From: F.H.Simons at tue.nl
  • Date: Tue, 18 Jul 2000 00:58:35 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Otto,

Maybe the following will help you. Let n be a counter for the number of
iterations.

n=0; x = FixedPoint[ f, x, SameTest :> (n++;Abs[#2-#1]<somesmallnumber&)]

Now the value of n is the number of iterations. Note the SetDelayed in
SameTest.


Regards,

Fred Simons
Eindhoven University of Technology


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