MATLAB: Error using pde.Equati​onModel/so​lveStation​aryNonline​ar (line 104) Stepsize too small.

nonlinear pdePartial Differential Equation Toolbox

I am solving this system of PDEs with diritchlet boundry conditions and It does not converge, and gives me this error.
Error using pde.EquationModel/solveStationaryNonlinear (line 104)
Stepsize too small.
Do you know how can I solve it.

Best Answer

Are you giving nonzero initial conditions for the solution? It looks like your equations might be singular where the solution gradient is zero, so your initial conditions should avoid those areas.
Just a guess,
Alan Weiss
MATLAB mathematical toolbox documentation
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