matlab

RunTime 实现时间的计时功能RunTimeRunTimeRunTime(RunTime 实现时间的计时功能)

VC编写的隐藏桌面窗口程序的工具，可以方便快速的一键隐藏和显示指定的程序！(VC hiding desktop windows program written in the tools that can facilitate the quick hide and show a button with the specified procedure!)

钟面上的时针和分针之间的夹角总是在 0 ～180之间 ( 包括 0 和180 ) 。举例来说，在十二点的时候两针之间的夹角为 0 ，而在六点的时候夹角为180 ，在三点的时候为90 。本题要解决的是计算 12:00 到 11:59 之间任意一个时间的夹角。(The angle between the hour and minute hands of the clock face is always between 0 to 180 (including 0 and 180). For example, twelve o' clock, when the angle between the two pin 0, in the six o' clock when the angle is 180, three points for 90. This question must be resolved are the angle of the calculation of 12:00 to 11:59 any one time.)

互补滤波算法解析，利用加速度计和陀螺仪采集的数据，通过互补滤波算法实现对姿态的解算。(Complementary filtering algorithm analysis, the use of accelerometers and gyroscopes data collected through the complementary filter algorithm for solving attitude.)

该程序能够实现计算器程序设计，采用C++编程，来自C++程序设计原理与实践。(The program can achieve calculator program design, using C++ programming, program design from C++ Principles and Practice)

USACO第10题，Marry乳业从一些奶农手中采购牛奶，并且每一位奶农为乳制品加工企业提供的价格是不同的。此外，就像每头奶牛每天只能挤出固定数量的奶，每位奶农每天能提供的牛奶数量是一定的。每天Marry乳业可以从奶农手中采购到小于或者等于奶农最大产量的整数数量的牛奶。 给出Marry乳业每天对牛奶的需求量，还有每位奶农提供的牛奶单价和产量。计算采购足够数量的牛奶所需的最小花费。 (Give the requirement of milk and the amount that they offer.)

计算器，实现了常规的所有计算功能，很好用的(Calculator, to achieve all the computing power of a conventional, well used)

1、时间序列的ARMA（自回归移动平均）算法代码实现； 2、能用于平稳时序的分析和预测； 3、使用C/C++开发。(1、The codes relization of timeseries arma forecast method 2、Be used in analyzing and forecast in timeseries 3、Be developed by C/C++ tool.)

有的科技图书会附有索引，其中列出书中重要术语出现的页码，便于读者查看。试设计一个类似的程序。输入是一个英文文本文件，输出是文件中关键字及其出现的行号的列表并按照关键字有序排列。程序运行方式：>index inputfile keys outputflie (Some books will be accompanied by technology index, which lists important terms appear in the book pages, easy to readers to view. Try to design a similar procedure. English text input is a file, the output is a file that appears in the keywords and their line numbers list and ordered according to keywords. Program run mode:> index inputfile keys outputflie)

说明：  这个小工具可以实现浮点数（4个字节）和实数之间的转换。(This gadget can achieve floating-point numbers (4 bytes) and the conversion between real numbers.)