rotation matrix algorithm

隐MARKOV经典算法，也是通用算法，linux环境，可以移植到windows-Hidden Markov classic algorithms, as well as generic algorithms, linux environment, can be transferred to the windows

操作系统中的同步于互斥问题一直是一个难题，相对与独木桥问题而言，中间可以过两个人而两边只可以一次过一个人的问题，要更为复杂，如何让同步程度更大去实现该算法也更为不易。

公历及阴历算法(Calendar)-calendar and the lunar calendar algorithm (Calendar)

GPS数据处理源代码，提供了星历处理、伪距定位、载波定位的函数。-GPS data processing source code, provided ephemeris treatment, pseudo-range positioning, carrier positioning function.

C语言数值计算中常用的函数，如sin(x),cos(x)的实现方式的源代码。-Codes for functions which are used frequently in numerical calculation ,such as sine function,cosine function, written in C language

跟踪滤波的目的是根据已获得的目标观测数据对目标的状态进行精确估计，跟踪滤波的关键是对机动目标的跟踪能力，机动目标跟踪的主要困难在于跟踪设定的目标模型与实际的目标动力学模型的匹配问题。 -The purpose of tracking filter is based on objective observational data has been the target of the state accurately estimate the key to tracking filter for maneuvering target tracking capabilities, the main difficulty maneuvering target tracking is to track the target model to set realistic goals and motivation learn the model matching problem.

著名的3SAT问题 用蒙特卡罗算法实现的！-famous 3SAT uses Monte Carlo algorithm!

liang barsky line clipping algo

ASCII码转BCD码算法-ASCII transfer algorithm BCD

An extensible math parser