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MathGroup Archive 1996

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Working Precison

  • To: mathgroup at smc.vnet.net
  • Subject: [mg5008] Working Precison
  • From: Sebastien Neukirch <seb at celfi.phys.univ-tours.fr>
  • Date: Sat, 19 Oct 1996 02:25:52 -0400
  • Organization: CITU - Universite d'Orleans - FRANCE
  • Sender: owner-wri-mathgroup at wolfram.com

I'm working on Mathematica 2.2.1 for Microsoft Windows.
I'm looking for a numerical values of

FindRoot[fn(x,y)==0,gn(x,y)==0,{x,1.2},{y,2.3},WorkingPrecision->16]

f1 and f2 can be huge polynomials.
The computer tells me that the method doesn't converge.
So I increase the WorkingPrecision to 32, but it still doesn't
converge. How far can I go? Do I have to increase the Max Steps ?

Thanks


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