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Re: fsolve features

From: Francesco Potorti`
Subject: Re: fsolve features
Date: Mon, 5 Jul 1999 12:35:12 +0200 (CEST)

   (2)   a call to fsolve  like :  [x,info]=fsolve('f',x0)   is adequate for
   function   (vector) Y =  f ( vector X  ) 
         >>> where Y and X have same length <<<<
         It's supposed to handle equally sized problems only!

It is easy to work around this.  Maybe you are suggesting that a workaround
is nt what you would like to have?
   [x,RC]= fsolve(f='x^2 +1',randn(1)); #>V2.0.14
       #NOTE: prior to V2.0.14 , you have to  define  f  explicitely:
       #function y=f(x) y=x^2+1; end

!!!  Where is this documented?

   Because of all these pitfalls of 'fsolve', I decided to write my my
   personal solver 'cfsolve' , returning correct complex roots for this (or
   similar) problem

Where is your cfsolve?

Francesco Potortì (researcher)         Voice:    +39-050-593 203 (op. 211)
Computer Networks Group                Fax:      +39-050-904052
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