中文说明： 本代码是有关非线性最小二乘法的一个求解程序，其是用MATLAB编写而成。目的是跟踪误差，希望这段代码能够给大家带来帮助，本段代码只给大家做为一个参考。
English Description：
This code is about the nonlinear least square method of a solution program, which is written with MATLAB. The purpose is to track the error, I hope this code can help you, this code is only for your reference.