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说明：  matlab在电力系统中的应用，基于UPFC仿真程序(matlab in power system applications, based on UPFC simulation program)

IMAGE_CONTRAST is a MATLAB function which carries out a simple contrast enhancement operation on an image. Note that MATLAB s image processing toolbox includes a functions such as nlfilter which can do a more sophisticated treatment of images. But the purpose of this example is to demonstrate the process of image enhancement in a way that is clear enough to understand quickly.

应用matlab实现了二维的有限差分正演，是实现地球物理正演模拟方法的基础。(Applied to achieve a two-dimensional matlab finite difference forward, is to achieve geophysical forward modeling approach is based on.)

前推回代法编的39节点40条支路的潮流计算程序。对于研究电力系统潮流计算有一定帮助！(Forward and backward substitution method series of 39 nodes 40 branch flow calculation procedures. Power flow calculation for the study of some help!)

To investigate the effects of the discrete Fourier transform parameters on the frequency spectra of discrete-time signals. (Display x(n) on the screen with the plot command in Matlab)

线性调频信号（chirp信号）的脉冲压缩处理的matlab程序例程。(Chirp signal (chirp signal) pulse compression processing matlab routine.)

说明：  matlab图像相关性计算，根据相关性系数计算公式编写(matlab image correlation calculated correlation coefficients according to formula preparation)

DS的信号调制解调，是基于matlab的的M文件。(DS signal modulation and demodulation, is based on the M-file matlab.)

matlab 画心形 希望有帮助 给女朋友挺好的倡议(matlab heart study and study over and over again.enjoy i dont descript this in english.)

create vector in 3d space. find angle & length