阿里巴巴Java开发手册

将笛卡尔坐标系上的点定义为一个服务类Point，Point类提供求得坐标系上两点间距离的功能、获取和设置坐标的功能、获取极坐标的功能，和完成对已创建的Point类对象统计功能。设计测试Point服务类的应用程序主类，测试并显示输出提供功能的结果。(求以点(1,1)为极坐标原点，点(5,5)的极坐标)-Will be a point on the Cartesian coordinate system is defined as a service class Point, Point class provides coordinates obtained on the function of the distance between two points, access and set coordinates, polar coordinates to obtain functions, and the completion of the Point that have been created class object statistical functions. Design Test Point service class application" s main class to provide functionality to test and display the output results. (Seeking to point (1,1) to polar coordinates origin point (5,5) in polar coordinates)

空时滤波算法学习程序，包括方向图显示等功能(Learning program for space-time filtering algorithm)

说明：  K-Means聚类算法 语言matlab(matlab k-means algorithm)

一个脏矩形演示程序，在网上下载的，希望对大家有用。-a dirty rectangular Demonstration Program, the online download, I hope useful for all.

说明：  （1）设计一个“简易计算器”，主要实现判断输入的表达式是否合法将中缀表达式转换成二叉表达式树。后序遍历求出表达式的值。能判断输入的表达式是否合法。 （2）用链式存储存储信息，求值时可以采用递归的思想，对表达式进行后序遍历。 （3）将操作结果保存到外部文件。((1) Design a "simple calculator" to judge whether the input expression is legitimate or not and convert infix expression into binary expression tree. The value of the expression is obtained by post-order traversal. Can judge whether the input expression is legitimate. (2) Store information in chain mode. When evaluating the value, we can use the idea of recursion to carry out post-order traversal of the expression. (3) To save the operation results to external files.)

说明：  进行误差预测我觉得很好的，欢迎大家下载 ，对大家都很有用(I think it's good to make the error prediction, and it's very useful for everybody to download)

学生成绩核算系统的设计与实现（25） 要求：（1）按班级按课程从文件中读入相应的平时成绩、期中考试成绩和期末考试成绩。 （2）三个成绩对总评成绩的百分比被定义为常数，各占总成绩的30 、30 和40 。 （3）计算每位学生的总评成绩。 （4）计算该班级本课程的总平均成绩。 （5）计算处于优、良、中、及格、不及格的学生人数以及占总人数的百分比。其中100-90为优，89-80为良，79-70为中，69-60为及格，60分以下为不及格。 （6）按要求输出成绩在优、良、中、及格、不及格各区间的学生学号、成绩。-The student achievement calculation system s design with realizes (25) Request: (1) reads in the corresponding usual result, the midterm examination result and the terminal examinations result according to the class and grade according to the curriculum from the document. (2) three result are defined to the general appraisal result s percentage as the constant, occupies the overall result respectively 30 , 30 and 40 . (3) calculates each student s general appraisal result. (4) calculates this class and grade this curriculum the population mean result. (5) calculates the student population which is in superiorly, good, passes an examination, does not pass an examination as well as accounts for the total number of peop

说明：  根据福建民间的一种游戏，给客户定制的一种游戏玩法源码(According to Fujian folk game, a custom lottery source code)

资源描述MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM

说明：  用核主成成分分析法对数据的降维，根据降维结果可选择最合适的维数(Kernel principal component analysis with the data dimension reduction method, based on the results of dimension reduction can choose the most appropriate dimensions)