An optimization is performed using the MATLAB fminseach function.

This optimization has a parameter that adjusts the precision, and the larger the value, the wider the search range of solution and the worse resolution. When the value is decreased, the search range of solution becomes narrower and the resolution becomes better.

I would like to keep this precision parameter large for a small number of iterations, and gradually decrease it when the solution starts to converge. Let's me know how to do it. For example, is it possible to refer to the number of iterations inside the function to be minimized during the optimization?

Thank you very much for your time.