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MathGroup Archive 2004

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Re: solving nonlinear equation with mathematica !!

  • To: mathgroup at smc.vnet.net
  • Subject: [mg47151] Re: solving nonlinear equation with mathematica !!
  • From: m004202002 at yahoo.com (why)
  • Date: Sun, 28 Mar 2004 00:07:42 -0500 (EST)
  • References: <c438oj$ekr$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

m004202002 at yahoo.com (why) wrote in message news:<c438oj$ekr$1 at smc.vnet.net>...
> Hi,
> 
> I face root finding problem solving nonlinear equation
> 
> I have system nonlinear equation
> 
> x^2-y-1 = 0;
> 10x exp(-x)-y = 0 ;
> 
> If you draw the graph you see two intersecting point .
> 
> I have found a point [Using FindRoot function ]
> In (-0.1,-0.5) the point is (-0.0905897,-0.991794 )---it is OK 
> 
> But 
> In (2.0,1.0) the point is (1.94463,2.7816)
> But the graph says the x->2.something ,y->1.somthing 
> I have used same FindRoot function to find the root
> in (2.0,1.0 ).
> 

Sorry ,There was a fault in my code(graph plotting)
Now every thing is ok :)


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