[.Fortran常用算法程序集－第二版_徐士良

说明：  使用STM8L调试MPU6050和BMP280(using STM8L to drive mpu6050 and bmp280)

关于超级市场管理的例子！-on supermarket management example!

这个程序可以计算给定点处的小区信号范围覆盖。-is program computes a map of visibility from a selected point on a topography. It has been written to help the search for radio relay best location. Because it considers only direct line of sight, it gives a good estimation for possible radio link for short distances only (less than 10 km), neglecting curvature of the Earth, Fresnel zone and atmospheric refraction on radio waves propagation. The program computes the relative elevation angle of the mask for each point (the angle is null or negative if the point is visible). The function needs a digital elevation model Z and associated (X,Y) vectors or matrices of coordinates (same unit as Z), position of the point (X0,Y0), the antenna height H0 (for instance 4 m), and the hypothetic antenna height Ha on each topography points (for instance 3 m). When no output argument is given, the function plots a map of the results (color map of mask angles, and blank for visible points, see example screenshot). The s

opencv motion detection

对一系列散点数据进行拟合，得到平滑的曲线(A series of scattered data are fitted to obtain a smooth curve)

传智书城网络书城源代码，适合新手下载学习。用户登录，注册，商品的添加删除以及后台的管理程序(Chuanzhi Bookstore Online Bookstore Source Code, suitable for beginners to download and learn. User login, registration, merchandise addition and deletion, and background management procedures)

说明：  偏最小二乘法是一种新型的多元统计数据分析方法，于1983年由S.Wold和C.Albano等人首次提出。偏最小二乘法实现了，在一个算法下，可以同时实现回归建模（多元线性回归）、数据结构简化（主成分分析）以及两组变量之间的相关性分析（典型相关分析）。 PCA方法虽解决了自变量共线性的问题，但是并没有考虑自变量主元对于因变量变化的解释作用。所以删除的次要主元有可能包含对回归有益的信息，而保留的主元有可能会夹杂一些对回归模型输出无益的噪声。 PLS方法，通过将自变量和因变量的高维数据空间投影到相应的低维空间，分别得到自变量和因变量的相互正交的特征向量，再建立自变量和因变量的特征向量间的一元线性回归关系。不仅可以克服共线性问题，它在选取特征向量时强调自变量对因变量的解释和预测作用，去除了对回归无益噪声的影响，使模型包含最少的变量数。(Partial least square method is a new multivariate statistical data analysis method, which was first proposed by S. wold and C. Albano in 1983. Partial least square method can realize regression modeling (multiple linear regression), data structure simplification (principal component analysis) and correlation analysis (typical correlation analysis) between two groups of variables.)

说明：  道格拉斯普克法。计算机地图制图学课后实习代码；VC++6.0实现(Douglas Puck;After-class Practice Code of Computer Cartography)

一个比较老的好书-a veteran of the books

说明：  VHDL spi ad9910 for FTW