pca

统计中英文字幕的英文单词数，也能够统计词频(Count the number of English words in Chinese and English subtitles, and also count the word frequency)

说明：  12v1kw通用纯正弦逆变器资料，包括原理图和原理说明(12v1kw universal sinusoidal inverter data)

一些 北大的模式识别课程课件 ，希望对做模式识别的同仁们有所帮助-Some pattern recognition sharPKUngfu Courseware, and they hope to make pattern recognition colleagues help

通过编写程序即可得到程序框架流程图等的小软件工具-Procedures can be obtained through the preparation of the framework of flow chart of procedures, such as small software tool

说明：  输入椭圆中心和长短轴径; 2. 计算得到中心在原点的椭圆上的第一个点=; 3. 根据公式(1.1.3-2)计算区域1中决策参数的初值为; 4. 在区域1中每个位置处，从开始，反复按照公式(1.1.3-3)更新决策参数，若决策参数小于0则不变，反之加1，一直循环到为止，记第一个满足此条件的点为(); 5. 在区域2的每个位置处，从开始，反复按照公式(1.1.3-6)更新决策参数，若决策参数小于0则不变，反之加1，一直循环到()为止;(Input ellipse center and long and short axis diameter; 2. The first point of the center on the ellipse at the origin is calculated. 3. According to formula (1.1.3-2), the initial value of decision-making parameters in region 1 is calculated. 4. At each location in region 1, the decision-making parameters are updated repeatedly according to formula (1.1.3-3). If the decision-making parameters are less than 0, they will remain unchanged. If the decision-making parameters are less than 0, then add 1 and cycle until the first point satisfying this condition is (); 5. At each location of region 2, the decision parameters are updated repeatedly according to the formula (1.1.3-6). If the decision parameters are less than 0, they will remain unchanged. If the decision parameters are less than 0, then add 1 and cycle until ().)

这本是sql编程必不可少的书籍,一般问题都能解决-this sql programming is essential to the books, the general problems can be solved

用c语言对魔方阵进行编写，在vc下成功运行，希望对大家有帮助-right matrix for the preparation of the devil, under the vc successful operation, and I hope to be helpful

说明：  A small example based on Android Win8 layout, similar to the old 360 interface, but just a layout, friends who want to study can download it.

biospassword

在复杂网络的伪信息传播过程中，类比于病毒传染的传播模型(Dummy information dissemination process in complex networks, analogous to the spread of the virus infection model)