IEEE39-V42a_-_F-two

说明：  一个有助于开发智力的八数码小游戏，有兴趣的小朋友可以看看，java初学者也可以借鉴(Contribute to the development of a digital game of eight intellectual, interested children can see, java beginners can learn)

这是一个音频的编解码库,使用标准的C++编写,有很好的移植性(This is an audio codec library, use the standard c++ written, has good portability)

说明：  动态门槛回归的相关资料，数据和程序，希望能够帮到有需要的同学(Relevant materials, data and procedures for dynamic threshold regression, hope to help students in need)

K-means算法是基于划分的思想，因此算法易于理解且实现方法简单易行，但需要人工选择初始的聚类数目即算法是带参数的。类的数目确定往往非常复杂和具有不确定性，因此需要专业的知识和行业经验才能较好的确定。而且因为初始聚类中心的选择是随机的，因此会造成部分初始聚类中心相似或者处于数据边缘，造成算法的迭代次数明显增加，甚至会因为个别数据而造成聚类失败的现象。(K-means algorithm is based on the idea of partitioning, so the algorithm is easy to understand and the implementation method is simple and feasible, but it requires manual selection of the initial number of clusters, that is, the algorithm is with parameters. The number of classes is often very complex and uncertain, so professional knowledge and industry experience are needed to better determine. Moreover, because the selection of initial clustering centers is random, some initial clustering centers will be similar or at the edge of data, resulting in a significant increase in the number of iterations of the algorithm, and even the phenomenon of clustering failure due to individual data.)

说明：  智能家居控制，传感器搭配使用，方便快捷实惠(Smart home control, sensor collocation, convenient, fast and affordable)

说明：  单相逆变器，可以实现市网电压频率输出，便于本科毕业设计学习所用(Single-phase inverter can realize the voltage output of the city network,Easy to use for undergraduate graduation design)

dm642的DDK提供的Mini Driver的使用说明，教你创建视频输入，输出接口的配置-DM642 The DDK provides the use of Mini Driver that teach you to create video input, output interface configuration

search multi Excel and Output to BookXX.xls [Delphi]-search multi Excel and Output to BookXX.xls

高斯光束在大气湍流中传输时的相位屏，灰度图及光强变化(phase screen, grayscale map and light intensity change of Gauss beam in atmospheric turbulence)

Two-Dimensional PCA: A New Approach to Appearance-Based Face Representation and Recognition