非线性方程求根的理论讲解，包括Newton s Method, The Secant Method, Brent s Method-Methods for Solving Nonlinear Equations ：Newton s Method, The Secant Method, Brent s Method

The load-flow analysis, implemented for both voltage regulation and voltage stability analysis, is performed by using the forward/ backward sweep method. The secant predictor technique is developed for predicting the node voltages which are the