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说明：  一个MATLAB写的BP神经网络原代码(write a MATLAB BP neural network original code!)

说明：  将Minpack库中的LM算法封装成库，经过调试，通过算例运行结果与Matlab中运行出来的结果相差0.01范围内。(Will Minpack library package into the LM algorithm library，After debugging An example is the results is only 0.01 Difference from the result of Matlab s! )

Savitzky-Golay Filtering of a Speech Signal Smooth the mtlb signal by applying a cubic Savitzky-Golay filter to data frames of length 41.

巴特沃斯滤波器，切比雪夫滤波器，椭圆滤波器设计及比较，同样的设计参数指标，在同一张图中比较三种滤波器的幅频响应波形，并用统计图画出各滤波器所需阶数。(Butterworth filter, Chebyshev filter, elliptic filter design, the same design parameter index, with a figure in the comparison of three filter frequency response waveform, and use statistical picture of the desired order of each filter.)

Steady-State Analysis of a Linear Circuit This demonstration illustrates use of the Powergui and Impedance Measurement blocks to analyze the steady-state operation of a linear electrical circuit

matpower代码包，用于电力系统潮流计算、优化等等(matpower4.1 source code)

This is a categorized compilation of tips for the MATLAB programmer. Items to help you to browse through them and find information that is useful. Many of the tips include a reference to specific MATLAB documentation that gives you more complete coverage of the topic.

matlab环境下的张正友法标定，可以获得相机的内参外参(Zhang Zhengyou calibration method under matlab environment, you can get the camera' s internal reference external parameters)

Matlab _ MIMO + QPSK + ML/MMSE/ZF 在Matlab的平台上,应用QPSK调制,以及3种不同的探测方法,实现并模拟了2x2的MIMO功能.(Matlab _ MIMO+ QPSK+ ML/MMSE/ZF on the Matlab platform, application QPSK modulation, as well as three different detection methods, and to achieve the simulated 2x2 MIMO function.)

确定圆形目标：读取图像并转化为二值图像，(Determine the circular target: read image and converting it into binary image,)