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RE: Complex Number problem

• To: mathgroup@smc.vnet.net
• Subject: [mg11098] RE: [mg11079] Complex Number problem
• From: jmt <jmthomas@cybercable.tm.fr>
• Date: Sun, 22 Feb 1998 14:55:24 -0500
• Organization: TeA
• Return-Receipt-To: jmt <jmthomas@cybercable.tm.fr>

Mind the fact your function Julia has no return value, or do you wish to
use "amounts" as returned value? Also mind the fact a general rule
affects capital letters to built-in functions.

You can use:
julia[x_, n_] := NestList[#^2&, x, n]


----------------------------------------------- Jean-Marie THOMAS
Conseil et Audit en Ingenierie de Calcul www.cybercable.tm.fr/~jmthomas
------------------------------------------------


-----Message d'origine-----
De:	Veit Sanner [SMTP:sanner@biosys.net] Date:	jeudi 19 fevrier 1998
02:33
A:	mathgroup@smc.vnet.net
Objet:	[mg11079] Complex Number problem

Hi.

I tried the following function to generate the Julia for a certain
point.

Julia[x_,n_]:={amounts={x}
  For[i=1,i<=n,i++,x=x^2;AppendTo[amounts,x];];}

But Mathematica always answers with tha same message:
  Set ::  write :  Tag Complex in x+y I is Protected.

How can I set this tag to unprotected?

ciao

    Veit