单自由度动力学

说明：  目前的代码是一个matlab函数，它提供给定信号x[n]的短时傅立叶变换（stft）。该函数是matlab命令“光谱图”的一个替代项。功能输出为： 1）一个具有复杂stft系数的矩阵，该矩阵具有跨列时间和跨行频率； 2）频率矢量； 3）时间矢量。 为了阐明函数的用法，给出了一个示例。为了方便起见，输入和输出参数在函数的开头给出。(The present code is a Matlab function that provides a Short-Time Fourier Transform (STFT) of a given signal x[n]. The function is an alternative of the Matlab command spectrogram The output of the function is 1) a matrix with the complex STFT coefficients with time across the columns and frequency across the rows; 2) a frequency vector; 3) a time vector. An example is given in order to clarify the usage of the function. For convenience, the input and output arguments are given in the beginning of the function.)

QR解码的Java实现示例，用Java实现QR解码的源程序代码。

滤波器耦合矩阵的综合，包含了去归一化，得到的矩阵即为实际频率响应(bandpass filter coupling matrix synthesis, real frequency)

一个java东西，是不错的。 再Jcreator 下编译过，看看就知道了．-a java things are quite good. Under another Jcreator compiled see will know. Oh

说明：  Windows GAMS 2.50 中文教程(Windows GAMES 2.50 Chinese Tutorial)

ch340串口下载软件，打开解压即可使用(Ch340 serial port download software)

动态计算网络最长最短路线-dynamic computing network longest shortest route

说明：  遗传算法的优化，结合着模拟退火算法找到最佳值(Optimization of genetic algorithm, combined with simulated annealing algorithm to find the best value)

重构中文版pdf（为什么一定要写20个字）(Reconstructing Chinese version)

说明：  kaggle--入门题，房价预测，常用机器学习算法。(Kaggle entry questions, house price forecasts.)