matlab开发环境下，牛顿迭代法解非线性方程组，使用者把非线性方程组的M文件fx1(x)和非线性方程组导数的M文件dfx1(x)相应代入即可。-matlab development environment, the Newton iteration solution of nonlinear equations, nonlinear equations to the user of the M documents fx1 (x) and non-linear equations of the

方程求根 inv - 逆矩阵 roots - 多项式的根 fzero - 一元函数零点 fsolve - 非线性方程组 solve - 符号方程解 *newton - 牛顿迭代法解非线性方程- Equation Root inv- Inverse Matrix roots- roots of the polynomial fzero- One Function Zero fsolve- nonlinear equations solve- Equ

牛顿迭代法是解非线性方程组比较经典的方法； 拟牛顿法是为了解决求Jacobi矩阵时带来的困难，现已成为解决非线性方程组和最优化问题的最有效方法之一。(The Newton iterative method is a classic method for solving nonlinear equations. The quasi Newton method is one of the most effective methods for solving the nonlinear equat