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根据高等数学求多元函数极值的思想，编写相应的MATLAB求极值程序。三个例子源自同济版《高等数学》中例题。(According to the Multiple Functions of Higher Mathematics extreme ideas, to prepare the corresponding MATLAB for extreme process. Three examples from Tongji Edition "Higher Mathematics" in the example.)

GPS系统C/A码的产生，37颗卫星的都有，还可以输出前10位进行验证(GPS system, C/A code generation, 37 satellites have, you can also output the first 10 to verify)

说明：  因为经典粗糙集只能处理离散型数据，而连续性数据必须离散化才能处理，但是离散化可能会丢失部分重要信息，所有使用基于邻域粗糙集的属性约简去处理连续性数据。(Attribute reduction based on neighborhood rough set)

A simple code for plotting Bessel functions of any order through GUI.

这里我们针对三级固体火箭进行研究，主要考虑每一级发动机工作时推力 和比冲 与发动机试车存在摄动偏差（相差 ）时所产生火箭关机点时刻的状态偏差。火箭的飞行的动力学方程可建立在地面发射坐标系中，火箭的第一级、第二级和第三级按照固定的俯仰角程序飞行，第二、三级飞行时已在大气层外，此时可忽略气动力的影响。(Here we study for three solid rocket, the main consideration at every level when the engine thrust and state arising the moment the rocket off point perturbation deviation (difference) in the presence of specific impulse and engine test bias. Outside of the rocket flight dynamics equations can be established on the ground coordinate system launch, the rocket s first stage, the second and third stages according to a fixed elevation angle of flight procedures, and the second, when the third flight already in the atmosphere, this when can ignore the effects of gas dynamics.)

matlab程序运行时导入数据文件作为输入参数，wolf 方法计算李雅普诺夫指数,基于混沌的模拟退火算法。( Import data files as input parameters matlab program is running, wolf calculated Lyapunov exponent, Chaos-based simulated annealing algorithm.)

Build Windows 8 Apps with Microsoft Visual C++ Step by Step 源代码(Build Windows 8 Apps with Microsoft Visual C++ Step by Step source code)

Seamless Handover between WiMAX and UMTS.

ansys 单相感应电机的静磁场分析，非常有价值，初学者的好例子(ansys single-phase induction motor analysis of the static magnetic field, very valuable, a good example of beginners)

ofdm在matlab上的仿真程序，并且是可视化的matlab程序(ofdm simulation)