无约束最优化中经典的信赖域方法matlab程序-Trust region methods for unconstrained optimization in classic matlab program

最优化算法中的信赖域方法，是一种非线性算法-Optimization algorithms in the trust region method, is a nonlinear algorithm

功能：牛顿型信赖域方法求解无约束优化问题min f(x) 输入 x0是初始迭代点 输出：xk是近似极小点，val是近似极小值，k是迭代次数- function: Newton type trust region method for solving unconstrained optimization problem min f (x) input The xo is the initial iteration point output: xk is appro

信頼域法程序，亲测可用，分享给大家！！！(Trust region method)