wenjian

后向差分法求解分数阶方程，源程序，现在日趋火爆，有学术价值(backward difference method to solve fractional derivation equation)

说明：  matlab在当今功率谱仿真的作用,包括经典功率谱估计和现代的(matlab simulation in today' s role of power spectrum, including classical and modern power spectrum estimation of)

说明：  处理旅行商问题的离散PSO算法的例程，动态生成路径串，算法本身保证了路径串的合法性(Traveling salesman problem to deal with discrete PSO algorithm routines, dynamically generated path string, the algorithm itself, guarantee the legitimacy of the path string)

基于滑模变结构的混沌系统的带有饱和函数的反同步代码，同时包括绘制相图和时域图的代码。(Sliding mode variable structure chaotic systems with saturation function based on inverse synchronous code, including drawing phase diagram and time domain chart code.)

说明：  用matlab完成的指纹识别程序，非常完整！(Complete with fingerprint recognition matlab program, very complete!)

PSO algorithmcode1.rar(PSO algorithmcode1.rar it is good)

solving the wave equation

防雷工程是一项系统工程，要求将外部防雷装置和内部防雷装置统一考虑，着眼于全方位的雷电综合防护，把机房建筑物的防雷、雷电电磁脉冲（LEMP）防护、设备防雷、电源系统防雷、线路防雷、接地系统、保护装置等综合因素考虑在内。任何方面的遗漏带来的危害都是不能(Mine is a systems engineering project, requiring the external and internal lightning protection lightning protection devices to consider a unified, integrated focus on the full range of lightning protection, lightning protection of buildings to the engine room, lightning electromagnetic pulse (LEMP) protection, equipment, anti- Thunder, lightning protection power system, line lightning protection, grounding systems, protective devices and other comprehensive factors into account. Omission of any harm is not)

系统介绍了matlab编程思想，是工程师的必备选择(Matlab programming system introduces the ideas are essential for engineers)

说明：  渥太华大学微波滤波器PM-IM实现负抽头(University of Ottawa microwave filter PM-IM to achieve a negative tap)