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Nonlinear ecuation...
From: 
John W. Eaton 
Subject: 
Nonlinear ecuation... 
Date: 
Wed, 22 Mar 2000 16:03:52 0600 (CST) 
On 22Mar2000, Cederik <address@hidden> wrote:
 I have the next set of nine nonlinear ecuations:

 ln(a)ln(f)+i+4g+(19720/8314)=0
 ln(b)ln(f)+2g+h(192420/8314)=0
 ln(c)ln(f)+h+i(200240/8314)=0
 ln(d)ln(f)+2h+i(395790/8314)=0
 ln(e)ln(f)+2g=0
 a+c+d2=0
 4a+2b+2e14=0
 b+c+2d3=0
 a+b+c+d+ef=0

 Where:
 x[1]=a
 x[2]=b
 x[3]=c
 x[4]=d
 x[5]=e
 x[6]=f
 x[7]=g
 x[8]=h
 x[9]=i

 Octave can't solve it... (nonconvergent), but in fact i know that set of
 ecuations has solution. Because is a Book example.
 Octave can solve it if i put the initial x's [a,b,c,d,e,f,g,h,i] as the
 exactly solutions. But that way isn't usefull for me...
 Any sugestions?
Can you please provide enough information so that someone can at least
try to reproduce your problem? What is the expected solution? What
initial value of x fails?
jwe

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