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MathGroup Archive 2007

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Limits on solving large nonlinear system

  • To: mathgroup at smc.vnet.net
  • Subject: [mg80799] Limits on solving large nonlinear system
  • From: Tomislav Nad <tomislav.nad at student.tugraz.at>
  • Date: Sun, 2 Sep 2007 02:52:54 -0400 (EDT)


Hi,



I am using Mathematica to solve nonlinear systems of equations,

without success, because I run out of memory.

So I try to find out where the limits are for FindRoot:

size of the system, degree of the equations and so on.

I actually did not find any information about this.



In all my equations the degree of one variable is always one,

but I have a lot of expressions where variables are multiplied

like

   x1*x2*x3*x4 = 0

   x1*x2*x3+x1*x4 = 0.



Does anyone know more about the limits?



Regards,

Tomislav




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