11_chapter 4

随机数函数的使用-random use of the function

利用matlab来实现对于脉冲滑窗监测的功能(Use matlab to realize the function of sliding window)

MAX35104评估板原理图，配合厂家上位机软件，研发前期可以使用。(MAX35104 EV Kit,you can use it when designing.)

说明：  输入实验数据，自动画出莫尔圆及切线。可根据实际情况调整(Input experimental data and automatically draw Mohr circle)

能为金山杀毒软件提供一个自动升级的东西,不需要注册,解压就可以使用.-to provide an anti-virus software automatic escalation of things, does not require registration, decompression can use it.

说明：  计算刚性轴瓦的径向滑动轴承油膜压力的二维分布(Two dimensional distribution of oil film pressure of journal bearing with rigid bearing bush)

Visual Basic 6.0的一个搜索扩展程序，比系统自带的更好用，支持正则表达式(Visual Basic 6.0 the expansion of a search process, better than the system used its own in support of regular expressions)

易语言机器码注册原码，加密后的~希望大家有用-Yi language codes of the original registration code encryption ~ hope we useful!

说明：  构造最小生成树的常用方法是Prim算法与Kruskal算法，二者都是基于贪心算法设计侧略。(Construction of the commonly used minimum spanning tree algorithm is Prim and Kruskal algorithms, both are based on the design side of a little greedy algorithm.)

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.)