function main() clc; clear all; f = @(x)log(x+sin(x)); % 测试函数 df = @(x)(1+cos(x))/(x+sin(x)); % 导数函数 x0 = 0.1; % 迭代初值 x = TestNewton(f, df, x0) % 牛顿法求解 function x = TestNewton(fname, dfname, x0, e, N) % 用途：Newton迭代法解非线性方程f(x)=0 % fname和df