Can relative and absolute tolerances be set for the solvepde function?

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mrugesh
mrugesh 2016-9-12
回答： michio 2016-9-13
I am using solvepde function to solve a system of pdes. The code is not running for the entire time. I think it will run if I set the relative and absolute tolerances. Is there a way to do this for the solvepde function?

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michio
michio 2016-9-13
Yes you can through SolverOptions property of PDEModel.
>> pdemodel = createpde
pdemodel =
PDEModel with properties:
PDESystemSize: 1
IsTimeDependent: 0
Geometry: []
EquationCoefficients: []
BoundaryConditions: [0x0 BoundaryCondition]
InitialConditions: []
Mesh: []
SolverOptions: [1x1 PDESolverOptions]
>> pdemodel.SolverOptions
ans =
PDESolverOptions with properties:
AbsoluteTolerance: 1.0000e-06
RelativeTolerance: 1.0000e-03
ResidualTolerance: 1.0000e-04
MaxIterations: 25
MinStep: 1.5259e-05
ResidualNorm: Inf
ReportStatistics: 'off'
The relative and absolute tolerances can be set by
pdemodel.SolverOptions.AbsoluteTolerance = 1e-3
for example.

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