Question

Newton’s method is a fixed point iteration method, As Pn

(a) g(Pn-1)

(b) (Pn-1)

(c) g

(d) Pn

This question was posed to me during a job interview.

My question comes from 2N Newton Method in portion Rigorous Distillation Calculations of Distillation Design

Answer 1

Right choice is (a) g(Pn-1)

The explanation: Always Pn = g (Pn-1) is fixed point as in newton method, while other method NR and RS stage iterations are made as the problem proceeds.