Displacement

天在维普下载了一篇SPIHT算法改进的论文，（耿兴云，《基于改进SPIHT的静态图像编码》，电脑知识与技术：学术交流-2007年5期），我根据该文提出的改进算法，用Matlab来实现，却发现改进算法的程序运行速度比原算法还要慢，希望有兴趣的朋友进来看看，评论一下原因。(Days in the VIP downloaded a SPIHT algorithm to improve the paper, (Gengxing Yun, " based on improved SPIHT still image coding," Computer Knowledge and Technology: 5-year academic exchange-2 007), in accordance with this paper the improved algorithm Matlab to achieve, but found that the improved algorithm runs faster than the original algorithm is also slow, hope to have interested friends come to see, comment on why.)

this is a program for convolution where the range is given as positive it will convert negative range implicitly

哈工大数学实验 实验源代码实验1(HIT mathematical experiment experimental source code experiment 1)

求解简单振动系统的响应（中心差分法，Wilson-θ法，Newmark-β法，Houbolt法）(Solving simple vibration response of the system (central difference method, Wilson-θ method, Newmark-β method, Houbolt method))

MATLAB DATAMINING COURSE CODE

说明：  最优问题求解工具包，通过GA遗传算法，可以求得最优解。(Optimal problem solving toolkit, through the genetic algorithm GA, you can get the optimal solution.)

电力系统潮流计算，基于BX快速解耦算法，对IEEE14节点标准拓扑网络进行检测，能够正确快速地计算出结果。(Power flow calculation based BX fast decoupled algorithm, IEEE14 standard topology network node detection, able to correctly calculate the results quickly.)

分布式lms算法，传感器网络，仿真通过，可以运行的(Lms distributed algorithms, sensor networks, through simulation, can run)

程序是关于雷达系统设计及分析的MATLAB源程序的集大成者，具有非常重要的参考价值，涵盖面非常广，几乎涉及了所有的雷达仿真问题(Program is for the design and analysis of radar systems MATLAB source of the synthesizer, has a very important reference value, covers a very broad, involving almost all of the radar simulation problem)

根据邻接矩阵，计算复杂网络中节点的介数。(According to adjacency matrix, Calculate the Betweenness of network nodes)