m5_4

helpful code for sparse matrix vector product

利用FAST-ICA进行谐波分解，过程简单，数据可靠(FAST-ICA harmonic decomposition, the process is simple, reliable data)

求洛伦兹信号的功率谱matlab程序，可以用来求其他信号的功率谱。(Power Spectrum Estimate )

说明：  ieksu saze 3faze in simpower system

matlab simulink buck boost converter

潮汐调和分析 利用t-tide程序对实测数据资料进行的潮位调和分析 求出调和常数(Tidal harmonic analysis procedure using t-tide data for the measured harmonic analysis of tidal harmonic constants obtained)

Basic programmes on images

自适应最优核时频分析程序及相关软件，可用于相关的时频分析(Adaptive Optimal Kernel Time-frequency analysis procedures and related software for the relevant time-frequency analysis)

利用matlab画出一朵玫瑰，建立一个基本的m文件(use matlab to paint a rose)

某石油公司计划建造一条由东向西的主输油管道。该管道要穿过一个有n 口油井的油田。从每口油井都要有一条输油管道沿最短路经(或南或北)与主管道相连。如果给定n 口油井的位置,即它们的x 坐标（东西向）和y 坐标（南北向）,应如何确定主管道的最优位置, 即使各油井到主管道之间的输油管道长度总和最小的位置?证明可在线性时间内确定主管道的最优位置。(An oil company plans to construct a east to west from the main pipeline. The pipeline to pass through an oil field n wells. Wells from each must have a pipeline along the shortest path (or South or North) connected with the competent Road. If given the location of oil wells in n, that is, their x coordinates (east-west) and y coordinates (north-south), should be how to determine the optimal position in charge of Road, even if the wells to the pipeline in charge of Road between the sum of the smallest length location? proved to be linear time to determine the optimal position in charge of Road.)