switch_sin_sigal

peak signal to noise ratio

本代码可以实现对于6个数据的回归分析及处理，并可修改进行相关推广(This code can return to the six data analysis and processing, and modify the relevant promotion)

3d model conversion using matlab

说明：  matlab的一本国外原版书，感觉还可以(matlab abroad of an original book, the feeling can also be)

共轭梯度法的matlab实现，给出任意的一个对称矩阵，可通过较小的迭代次数得到所要求精度的数值解(Conjugate gradient method matlab to achieve, given any symmetric matrix by a smaller number of iterations to obtain the required accuracy of the numerical solution)

模拟退火算法，常用的数值优化算法，适合初学者，非常方便(simulated annealing method, commonly used numerical optimization algorithm, for beginners, a very convenient)

Real time windows target with step function

沃伦·巴菲特（Warren Buffett，1930年8月30日－），美国投资家、企业家、及慈善家，被称为股神，尊称为“奥玛哈的先知”、或“奥玛哈的圣贤”，目前拥有约620亿美元的净资产，根据《福布斯》杂志公布的2008年度全球富豪榜，他已经超过卡洛斯·斯利姆·埃卢和比尔·盖茨成为全球首富。 (Warren Buffett (Warren Buffett, 1930 Nian 8 30-), American investors, entrepreneurs, and philanthropist, known as Unit God, affectionately known as " Omaha' s prophet," or " Omaha sages " , now has about 620 billion in net assets, according to" Forbes " magazine published 2008 annual global rich list, he has more than Carlos Slim Helu and Bill Gates as the world' s richest man.)

弹性成像国内研究的最新进展，两篇重要的英文文献，很受启发，欢迎相关领域的研究者参考(The latest progress elastography domestic research, two important English literature, very enlightening, researchers in related fields are welcome reference)

HDF5的中文使用说明，找了很久才找到的资料，HDF5编程的很好的入门资料。(The Chinese use HDF5, looking for a long time to find information, HDF5 programming is a good introductory information.)