VBA简介

Matlab 算法寻找Bessel函数的零点。(find the zero point of Bessel functions)

根据给定的等距结点上的函数值与一阶导数值, 用埃尔米特等距插值公式计算指定插值点处的函数值。(According to the given equidistant nodes function value with a first derivative values, with equidistant interpolation Hermite interpolation formula specified function value at the point.)

fft混合基算法，c代码实现，可移植混合基的傅立叶变换算法(fft-based hybrid algorithm, c code, portable hybrid-based Fourier transform algorithm)

随机有限元理论教材，是学习随机有限元及可靠度理论的不错东东 (Stochastic finite element theory of teaching materials, are studying stochastic finite element and reliability theory is true Dongdong)

说明：  计算超短脉冲非线性传输的一个比较成熟的M文件(Calculation of nonlinear transmission of ultrashort pulse of a more mature M documents)

说明：  复合材料层内基于断裂韧性退化的VUMAT子程序(VUMAT subroutine based on fracture toughness degradation in composite laminates)

利用FFT估计正弦信号的频率,要估计一个叠加了高斯白噪声的正弦信号 的频率 ，可以通过对x(n)做傅里叶变换，得到频谱图，找出幅度的最大值对应的频率值 ，进行多次变换，求出均方误差 。改变信噪比SNR，通过仿真可以得出随着信噪比增加，均方误差减小。(Sinusoidal signal using FFT frequency estimation, to estimate a Gaussian white noise superimposed on the frequency of sinusoidal signals, can be achieved by x (n) be the Fourier transform to get spectrum to identify the magnitude of the frequency value corresponding to the maximum , several transformations, find the mean square error. Change the signal to noise ratio SNR, the simulation can be drawn as the SNR increases, the mean square error decreases.)

有直接法,间接法,Bartlett法,Welch法(有????? ????? Bartlett ? Welch )

基于RWG基函数的矩量法分析偶极子天线的辐射特性，全部程序每行本人都有详细注释，清晰容易理解，出来的结果与理论分析完全一致。(RWG basis function method of moments-based analysis of the dipole antenna radiation characteristics, all the procedures every line I have detailed notes, clear and easy to understand, exactly the same out of the results with the theoretical analysis.)

经典非线性动力学模型，布鲁塞尔子模型，可直接运行，运算效率高。(nonlinear dynamics Brusselator model)