MATLAB: How to modify the default options (like RelTol’ and ‘AbsTol’) of the pde solver when using the PDE toolbox

Question

When working in 1D, I can modify the default options of the solver by using odeset and then calling the 'options' with pdepe, for example:

options = odeset('RelTol',1e-13,'AbsTol',1e-13);

sol = pdepe(m,'pde','ic','bc',x,t,options)

Now I am working in a 2D probelm and I am using the PDE toolbox. How can I especify options when working with the PDE toolbox? I use the command line function solvepde and I I would like to set more strict Relative error tolerance and Absolute error tolerance.

Apparently, the function solvepde calls ode15s which allows the especification of 'options'.

Thank you.

Answer 1

You can edit those tolerances directly using the model object properties. Say,

model = createpde(...

User model the set RelTol as:

model.SolverOptions.RelativeTolerance = 1E-6

Regards,

Ravi