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hoomanya
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Hi, is there a way to add a user defined convergence criteria to an ode solver so that the solution is stopped?
edit ballodeA convergence criteria is a condition that is used to determine when an iterative process, such as solving an ODE, has reached a satisfactory solution. In Matlab ode solvers, it is used to specify the accuracy or tolerance level of the solution.
To add a separate convergence criteria in Matlab ode solvers, you can use the odeset function to create an options structure. Within this structure, you can specify the convergence criteria using the RelTol and AbsTol options. These values will be used to determine the accuracy of the solution.
Yes, you can use multiple convergence criteria in Matlab ode solvers by specifying different RelTol and AbsTol values for different components of the solution. This can be useful when solving systems of ODEs with different levels of accuracy needed for each component.
If the convergence criteria is not met in Matlab ode solvers, the solver will continue to iterate until the maximum number of iterations is reached. If the solution still does not meet the convergence criteria, an error message will be returned, indicating that the solver was unable to find a satisfactory solution.
Choosing appropriate convergence criteria values in Matlab ode solvers depends on the specific problem you are trying to solve. Generally, the values should be small enough to ensure an accurate solution, but not so small that the solver takes an excessively long time to converge. It is recommended to experiment with different values to find the optimal balance between accuracy and efficiency for your specific problem.