How do I specify convergence criteria while using PDE Toolbox from a script? (R2017a)

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Sarojeet Deb 2018-2-5

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回答： Ravi Kumar 2018-2-14

The legacy workflow had properties that could be used in pdenonlin function. How can I set the convergence and Jacobian solution parameters in R2017a?

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Answer 1

Ravi Kumar 2018-2-14

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Hi Sarojeet,

You can access same controls in the new workflow as a property of the model. You can directly set them by assigning new values, which would replace the default values.

For example, if you have created a model named, myNonlinerProblem, then you can see the defaults as:

>> myNonlinerProblem.SolverOptions
ans = 
    PDESolverOptions with properties:
      AbsoluteTolerance: 1.000000000000000e-06
      RelativeTolerance: 1.000000000000000e-03
      ResidualTolerance: 1.000000000000000e-04
          MaxIterations: 25
                MinStep: 1.525878906250000e-05
           ResidualNorm: Inf
       ReportStatistics: 'off'