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Re: question with FindRoot

  • To: mathgroup at smc.vnet.net
  • Subject: [mg84011] Re: question with FindRoot
  • From: dh <dh at metrohm.ch>
  • Date: Thu, 6 Dec 2007 07:23:27 -0500 (EST)
  • References: <fj89o0$a9e$1@smc.vnet.net>


Hi Ary,

it's hard to tell without an example.

Well, assume your equation for x1 depends on a further variable x2 given 

by a second equation. E.g.:

eq={

x1^3+3 x2==5,

x2^4-x2^2+x2==2

};

FindRoot[eq,{{x1,1},{x2,1}}]

hope this helps, Daniel



Ary Adilson Morales Alvarado wrote:

> Dear friends,

> 

> I have a problem using FindRoot under Mathematica 5.2.

> 

> I wants to find a root for an equation, but this equation depends of

> anothers equations.

> 

> I would like to kown how to put the equation that I want to solve, and the

> others equations, in the same line.

> 

> Thanks in advanced,

> 

> Ary

> 

> 

> 




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