solving equations numerically for a changing equation

Hi guys

I'm trying to solve an equation numerically, but I need the equation to update for each iteration. So, for example, for each of 3 iterations, an increasing number of terms must be added to the equation. Thanks

[bym]

is the equation polynomial, Taylor series, Fourier series? Need more details

Answer 1

[John D'Errico]

So, in reality, it is a different set of equations for each iteration?

If the solutions are expected to be close to the last set, i.e., the perturbation is small, then use the last solution as starting values for the next. There is not much more to be done.