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Re: NestWhile

  • To: mathgroup at smc.vnet.net
  • Subject: [mg37875] Re: NestWhile
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Sat, 16 Nov 2002 01:15:41 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <ar24f4$fpi$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

something like:


f[{x_, _}] := {x^2 + 1, If[x < 10, True, False]}

and

NestWhile[f, {1, True}, Last]

Regards
  Jens


Hader Josef wrote:
> 
> Hi folks,
> maybe you can help me with the following problem:
> 
> there is an iterative function
> f[x_]:=.... resulting something like {values, boolean}
> 
> I would like to nest f onto f repetitativly, however the number is not
> fixed in the beginning, but depends on the output of f (the boolean
> value).
> it looks like:
> NestWhile[f[#] &, {init,true}, criteria (depending on the output of f, 10]
> 
> any hint???
> thank you
> h.


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