matlab_40_example

finite difference scheme for simple harmonic oscillator

XFEM扩展有限元模拟二维裂纹动态扩展，由哈弗大学一个研究小组开发，非常值得学习(XFEM extended finite element simulations of two-dimensional crack dynamic propagation, developed by a team at Harvard University, is worth learning)

这是Matlab的中文实用手册，内容很齐全，对学习和开发Matlab有很重要的帮助，找了老半天才找到这样齐全的文档，又需要的可以下载。(This is a practical handbook of Chinese Matlab, which is very important of learning and the development of Matlab,this is not easily fined, also in need can be downloaded)

calculate turbulent length scales

雷达机动目标跟踪源程序，对学习卡尔曼滤波有指导性意义。(The source program of maneuvering target tracking, radar kalman filter has a guiding significance to the study.)

Mathematic model of acoustic field for ultrasonic transducers according to "Ultrasonic beam structures in fluid media" paper

波束形成Matlab程序，通过matlab程序，了解波束成形的算法过程，以及其含义(Beamforming Matlab program by matlab program to understand the process of beamforming algorithm, and its meaning)

说明：  该程序试图考察一组数据服从哪种分布（正态，指数或双边指数），并利用K-S检验对各种分布作了检验。(The program attempts to examine a set of data subject to which distribution (normal, exponential or bilateral index), and use KS test has been tested in a variety of distributions.)

说明：  用GP算法解决时间延迟、关联维、延迟窗口，以及他们之间的关系(GP algorithm used to solve the time delay, correlation dimension, delay window, and the relationship between them)

说明：  解决空中加油问题中飞机多次起飞问题，只有一架辅机的情况，飞机的架数有限制，小于4000架。(Solve the problem of air refueling aircraft to take off several times, only the case of an auxiliary plane restricted the number of planes, less than 4000.)