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Groups > comp.soft-sys.math.mathematica > #2957

Re: fibonacci question

From Bob Hanlon <hanlonr@cox.net>
Newsgroups comp.soft-sys.math.mathematica
Subject Re: fibonacci question
Date 2011-06-05 11:04 +0000
Organization Steven M. Christensen and Associates, Inc and MathTensor, Inc.
Message-ID <isfnsl$bu8$1@smc.vnet.net> (permalink)

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It can verify it

Fibonacci[cn] + Fibonacci[cn + 1] == Fibonacci[cn + 2] // FullSimplify

True

Fibonacci[cn] + Fibonacci[cn + 1] == Fibonacci[cn + 2] // 
  FunctionExpand // Simplify

True


Bob Hanlon

---- olfa <olfa.mraihi@yahoo.fr> wrote: 

=============
Hello Mathematica community,

why FullSimplify[Fibonacci[cn] + Fibonacci[cn + 1]] is not simplified
into Fibonacci[cn+2]?
what mathematica function should I use to get this output?

thank you very much for your help.


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Re: fibonacci question Bob Hanlon <hanlonr@cox.net> - 2011-06-05 11:04 +0000
  Re: fibonacci question olfa <olfa.mraihi@yahoo.fr> - 2011-06-07 10:48 +0000
    Re: fibonacci question SigmundV <sigmundv@gmail.com> - 2011-06-08 11:15 +0000

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