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MathGroup Archive 2004

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a strange line of code

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52710] a strange line of code
  • From: Stefan Schuster <bi1169*delete_from_star_to_star* at fh-weihenstephan.de>
  • Date: Thu, 9 Dec 2004 20:24:06 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello,

in a notebook, I found and function to calculate the Feigenbaum 
bifurcation Diagram.
I principial understand the Feigenbaum, and I think I'm also able to 
write such an funcion by myself, but not in this compact way.

Can someone please explain me the meaning of the Symbols #, @ and &

Here is the Code:

Feigenbaum = Compile[{{
     ?, _Real}}, ({?, #} &) /@ Union[Drop[NestList[
       ? # (1 - #) &, 0.2, 300], 100]]];

thanks in advance

Stefan


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