liqiang-fisher

用matlab编的一个程序用于求一个数的阶乘(Matlab made with a procedure for seeking a number of factorial)

nmf算法的一个简单代码实现，将一个矩阵分解成两个非负矩阵的乘积。(NMF algorithm a simple code realized, will a matrix is decomposed into two nonnegative matrices of the product. )

换能器导纳图绘制函数，需要自备换能器导纳数据，代入即可(Transducer admittance mapping function, you need to bring their own transducer admittance data can be substituted into)

transformation of coordiantes using finite diff method

1.实验目的：绘制分形图案并分析其特点。  2.实验内容：绘制Koch曲线、Sierpinski三角形和树木花草图形，观察这些图形的局部和原来分形图形的关系。  3.实验思路：利用函数反复调用自己来模拟分形构造时的迭代过程，当迭代指标n为0时运行作图操作，否则继续迭代(1. Purpose: Draw fractal patterns and analyze their characteristics. 2. Experiment: Draw Koch curve, Sierpinski triangle graphic flowers and trees, observe the relationship between the local and original graphics fractal graphics. 3. Experiment idea: using the function calls itself repeatedly to simulate the iterative process when the fractal structure, when the iteration index n is plotted 0:00 run, otherwise continue iterating)

re synthesize the speech signal

自己用的一个求MFCC参数的程序，绝对好用，带原始数据，可直接运行(A program and MFCC parameters, absolutely easy to use, with the original data, and can be run directly)

数据分析(Python language learning data analysis)

pathloss model in telecomunication example: free space, indoor pathloss, outdoor pathloss

蒙特卡罗法模拟高斯白噪声激励下二自由度振子的瞬态响应(Monte Carlo simulation of Gaussian white noise excitation vibration two degrees of freedom oscillator)