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MathGroup Archive 2000

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FindRoot inside a loop

  • To: mathgroup at smc.vnet.net
  • Subject: [mg23278] FindRoot inside a loop
  • From: "Calle-1, Carlos" <Carlos.Calle-1 at kmail.ksc.nasa.gov>
  • Date: Sat, 29 Apr 2000 22:05:21 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

I am trying to solve a parametric equation for different values of x. I
would like to plot the solutions as a function of x. I set up a loop (old
habits from my grad school days programming in FORTRAN). Since FindRoot has
the HoldAll attribute, I am using Evaluate. The Print{%] statement inside
the loop outputs -graphics-, which were produced right before the loop
starts. The last % correctly outputs the last value computed.

Clearly, I don't know enough about how Mathematica stores values and
therefore can't extract them. Do I define a function to store the values?
But what are the values called when FindRoot solves the equation at each
iteration?

 <<...>> 

Thanks,

Carlos Calle


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