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naive question

• To: mathgroup at smc.vnet.net
• Subject: [mg92781] naive question
• From: Francisco Gutierrez <fgutiers2002 at yahoo.com>
• Date: Mon, 13 Oct 2008 06:18:24 -0400 (EDT)
• Reply-to: fgutiers2002 at yahoo.com

Dear Friends:
I am using Fit within a function, and I want it to produce only a list of
 coefficients, without the variables.
For example, if I plug into fit the following: Fit[{{1,2,3},{4,5,6},{7,8,9}},{1,x1,x2},{x1,x2}],
Mathematica produces:
1.55556+0.555556 x1+0.444444 x2
 
I want to get only the following list:
{1.55556,0.555556,0.444444}
 
It seem awfully simple, but I haven't managed.
How can I do it?
Thanks
Francisco
 

• Follow-Ups:
  • Re: naive question
    • From: "Thomas Dowling" <thomasgdowling@gmail.com>