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SIFT代码，包括detector & descriptor.Matlab版本，内有详细的说明文档。值得一看(SIFT code, including detector )

Static power inverter can be analyzed by means of means of widely available circuit simulation software packages such as MATLAB. However, they are usually modeled a set of real switches, which results in long execution tines and possible convergence problems in the case of complex circuits. This paper proposes different PWM techniques to used in the simulation of three-phase power inverter. The

Lagrange插值、Newton插值函数等插值函数，函数为数值分析课本上的例题。(Lagrange interpolation, Newton interpolation function, such as interpolation function, function for the numerical analysis of the textbooks on the sample questions.)

householder transformation

说明：  永磁同步电机无速度传感器滑模控制论文，基于改进卡尔曼滤波的无速度传感器探究_张海刚(Speed Sensorless Sliding Mode Control of Permanent Magnet Synchronous Motor)

k Nearest Neighbor matlab code

MATLAB低通滤波，高斯滤波程序，共5个，对应分析的例子(MATLAB low-pass filter, Gaussian filter process)

TFIDF计算方法详细解释，代码解释很多，也有帮助文档(TFIDF calculation method explained in detail, explain a lot of code, but also help documentation)

SIFT特征点匹配,内涵matlab语言、c语言，(SIFT feature point matching, meaning matlab language, c language,)

使用ＭＡＴＬＡＢ工具，对信号进行采集调制，再进行信号解码．对信号进行算法控制．(The use of MATLAB tools, modulation of signal acquisition, and then decode the signal. The signal control algorithm.)