4567notch_filter

图像形态学的重要学习资料，讲解清楚完整,对图像处理有很重要的作用-morphological ppt

This is a package to calculate Discrete Fourier/Cosine/Sine Transforms of 1-dimensional sequences of length 2^N. This package contains C and Fortran FFT codes.

分频器，用于时钟信号的分频及倍频，供专业人事学习研究使用-Prescaler for the clock signal frequency and octave, for study and research the use of professional personnel

说明：  使用python，对疫情数据进行数据分析(Analyze the epidemic data)

超星版perl编程经典，实用报表提取语言-Superstar classic version of perl programming, practical extraction report language

C#根据域名获取IP地址，就像网络上的IP查询工具那样，输入域名即可查询到对应的IP地址，需要连接网络才行，同样是根据DNS查询IP地址，在Windows中，Ping命令可以实现此功能，但是不是调用了Ping的内核这个还不确定，有兴趣的自己下载源代码研究。

里面有很多种图标，光标，对很多正在进行开发的人无疑是一个好的帮手啊~！-There are a variety of icon, cursor, for many people being developed is a good helper ah ~!

MATLAB中Simulink 的方向阻抗继电器的电路仿真，设置不同的过渡电阻进行仿真(Circuit simulation of Simulink directional impedance relay in MATLAB, setting different transition resistors for simulation)

说明：  提出了一种合理的载波相位调制优化方法。该方法结合了子模块的平衡控制，不仅显示了更好的电容电压平衡效果，而且还输出了信号。谐波含量较低。(A reasonable carrier phase modulation optimization method is proposed. This method combines the balance control of the sub-module, which not only shows a better capacitance voltage balance effect, but also outputs a signal. The harmonic content is low.)

这是用C++编写的程序，可以实现多项式的求和。-C preparation procedures can be achieved polynomial summation.