yuanmachengxu

说明：  通过时域转换为频域，在频域中截取低频部分，去掉高频部分将结果再转换到时域以实现低通滤波的功能。(Through the time domain is converted to frequency domain, in the frequency domain low-frequency part of the interception, to remove high-frequency part of the results and then switch to the time domain in order to achieve low-pass filter function.)

LSMR : a least squares solution method

Collection of Sparse Representation Library(Berkeley+Gatech)

The chebfun project is a collection of algorithms, and a software system in object-oriented Matlab, which extends familiar powerful methods of numerical computation involving numbers to continuous or piecewise-continuous functions. It also implements continuous analogues of linear algebra notions like the QR decomposition and the SVD. The mathematical basis of the system combines tools of Chebyshev expansions, fast Fourier transform, barycentric interpolation, Clenshaw-Curtis quadrature, and recursive zerofinding.

气候分析中检验突变的经典程序，如滑动t检验，cv，滑动f检验等(Climate Analysis classic mutation testing procedures, such as sliding t test, cv, sliding f inspection)

MATLAB 编程有助于初学者进行学习，了解以及相应的运用(MATLAB programming will help beginners to learn, understand, and use of appropriate)

本设计对滑模变结构控制进行相关的研究,以Buck型变换器的控制为重点,通过对基本型的三阶滑模变结构控制方法、改进型的滑模变结构控制方法和基于等效理论的定频滑模控制方法的仿真,调节控制系统的参数,最后完成仿真，实验波形验证理论。(The design of the variable structure control studies related to control Buck Converter for emphasis, through the basic third-order sliding mode variable structure control, sliding mode variable structure control and improved based on equivalent fixed-frequency simulation sliding mode control theory, the control system tuning parameters, and finally complete the simulation experiments verify the theoretical waveform.)

说明：  cm in spoeech coding

prime method is used for optimization

模式识别中关于特征选择和特征提取的知识。。。(Pattern recognition on feature selection and feature extraction of knowledge. . .)