PQ_wave_analsys

说明：  数值分析实验1.明确插值多项式和分段插值多项式各自的优缺点； 编程实现拉格朗日插值算法，分析实验结果体会高次插值产生的龙格现象；(Experiments of numerical analysis 1. Define the advantages and disadvantages of interpolation polynomials and piecewise interpolation polynomials. The Lagrange interpolation algorithm is programmed, and the Runge phenomenon produced by high-order interpolation is analyzed.)

两种涡旋光束的线性强度、强度密度和三维立体图，改变拓扑荷可以改变强度分布。(two kinds of vortex beam)

PLS部分最小二乘工具箱,数值分析的EULER法，matlab编写的元胞自动机。( PLS PLS toolbox, EULER numerical analysis method, matlab prepared cellular automata.)

Wdisp，是基于建造结构计算软件pkpm的结果数据提取文件，方便使用，提取数据后，可用于绘制曲线。(Wdisp, is based on The construction structure calculations software pkpm the results of data extraction files, easy to use, extract data, can be used to draw the curve.)

ansys非线性各向同性，非线性随动硬化(ANSYS nonlinear isotropic, linear kinematic hardening)

利用预估矫正方法解分数阶常微分方程，该方法适用于线性和非线性分数阶常微分方程(using PECE method to solve fractional ordinary differential equation)

根据输入的长宽，计算Rectangle面积周长等功能，并画出在txt文件中(Rectangle Create a class Rectangle with attributes length and width, each of which defaults to 1 a. Provide member functions that calculate the perimeter and the area of the rectangle. b. Also provide set and get functions for the length and width attributes. The set functions should verify that length and width are each integer numbers larger than 0 and less than 20. c. Write draw function to display the Rectangle: in Assignment1. ) d. Write a driver program to test class Rectangle.)

快速傅立叶变换的程序，附有试验用数据，希望对大家有所帮助(Fast Fourier Transform procedure, with test data, and they hope to help everyone)

非负矩阵分解在矩阵计算中具有重要意义，这是NMF非负矩阵分解实验室完整代码。(non-negtive resolution)

说明：  多维随机数的生成方法，一维随机数生成方法，高维随机数的生成方法(Generation methods of multidimensional random number, one-dimensional random number and high-dimensional random number)