Online calculator: Fixed-point iteration method
https://planetcalc.com/2824this method is a sort of successive approximations method – the method of solving mathematical problems using a sequence of approximations that converge to the solution and is constructed recursively — that is, each new approximation is calculated based on the preceding approximation; the choice of the initial approximation being, to some extent, …
Chapter 2 Successive Approximations
www.math.smith.edu/~callahan/cic/ch2.pdfThis method of successive approximation is a basic tool of calculus. It is the one fundamentally new process you will encounter, the ingredient that sets calculus apart from the mathematics you have already studied. With it you will be able to solve a vast array of problems that other methods can’t handle. 2.1 Making Approximations