Powell-matlab_f

介绍C的好书,里面介绍了很多编程的知识，指的我们赌一赌，看一看(a book about c,it is a good description about c.and you can devalop your knowledge.)

In mathematics, the discrete-time Fourier transform (DTFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the "DTFT", of the original function (which is often a function in the time-domain).(This file includes matlab source code about DTFT and also includes explanation report)

State variable representation of the swing equation of the one-machine system after fault clearance.

gui设计,在开发各类软件之前可以帮助人们设计软件，并展示设计效果，更好的促进软件研制.(GUI design ，can help you to design GUI,and may help you to show what you will do,so It is more usful to you!)

基于梯度的亚像素配准算法的Matlab程序 (Gradient-based sub-pixel registration algorithm Matlab procedures)

SVM是分类器对于它的准确性还有过拟合性都有很成熟的改进 关于SVM函数拟合 (SVM is a classifier for its accuracy still has a very mature over-fitting of improved function fitting on SVM)

k-svd算法在表情识别方面的实现和实例应用，附有图片和文章。(k-svd algorithm for face recognition on the implementation and application examples, with pictures and articles.)

make a simple triangle with matlab

1.这是一个matlab滤波程序，内含空域二维卷积滤波；频域高通滤波；三级butterworth高通滤波器设计。 2.效果较好，内含较为翔实的代码注释，通用性，可移植性较强。(1. This is a Matlab filtering procedures, airspace containing 2D convolution filter; Frequency- domain high pass filter; 3 butterworth high pass filter design. 2. The result is better and more informative containing the code notes, general, portability strong.)

Savitzky Golay filter used on ECG signals.