直线拟合的几种算法，其中包括线性最小二乘，和两种不同目标函数的非线性最小二乘，用于比较这些方法的优劣，另外matlab中说的robust least squares方法没有找到，希望有朋友能给穿一下：）-Several linear fitting algorithm, which includes linear least squares. and two different objective function of the nonlinear least squares, used to

本程序是使用加入边界条件的有限时域差分法计算模拟电磁波在光学薄膜中的传输，可以计算有损耗的介质。运用matlab显示结果-This procedure is the use of boundary conditions add FDTD method simulation of electromagnetic waves in optical thin films in transmission, there is wear and tear can calculate the dielectr

the code is used to the failures detection and predection of tool wear with AR(calculus of twice differences in order to improve better estimation precision ） models.

使用C++语言编程建立时间序列模型，进行磨损预测-Use C++ language programming to build time series model for wear prediction