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nonuniform_fdtd
时域有限差分方法程序,网格为非均匀剖分的(FDTD method program, a non-uniform partition of the grid)
- 2021-04-10 16:08:59下载
- 积分:1
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Generator
这些代码可以用于产生一系列随机数,可以根据需要使用。(These codes can be used to generate a series of random numbers may be used as needed.)
- 2013-07-10 14:19:34下载
- 积分:1
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cohesive+inp和for子程序
ABAQUS 有限元子程序,粘弹性本构,蠕变应力松弛测试拟合结果(ABAQUS umat creep stress relaxation fitting result)
- 2020-07-01 00:20:01下载
- 积分:1
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UEL_XFEM
说明: 扩展有限元的Fortran代码,用于扩展有限元的数值仿真计算。(Extended finite element of the Fortran code for the extended finite element numerical simulation.)
- 2010-04-28 13:20:19下载
- 积分:1
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mie
mie散射计算,包括吸收系数,散射系数等。所需参数为m,x(mie scattering coefficients. The required parameters for m, x)
- 2012-09-06 13:43:24下载
- 积分:1
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stft
基于matlab的短时傅立叶变换,有语音读取功能!(Based on the short-time Fourier transform matlab, have voice reading!)
- 2007-10-19 17:51:23下载
- 积分:1
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atjjs
埃特金加速法,一个数值分析中的算法,大家先看看哦(Aitken acceleration method, a numerical analysis of the algorithm, we look at the flash open her cloak)
- 2007-06-18 10:34:17下载
- 积分:1
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AddMatrix
用三元组表为结构,实现稀疏矩阵的加法并输出。(Achieve sparse matrix addition)
- 2014-02-19 19:59:00下载
- 积分:1
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PCA算法程序 pca
PCA算法程序设计步骤:
1、去均值
2、计算协方差矩阵及其特征值和特征向量
3、计算协方差矩阵的特征值大于阈值的个数
4、降序排列特征值
5、去掉较小的特征值
6、去掉较大的特征值(一般没有这一步)
7、合并选择的特征值
8、选择相应的特征值和特征向量
9、计算白化矩阵
10、提取主分量
(PCA algorithm programming steps: 1 to mean 2, calculation of covariance matrix and its eigenvalues and eigenvectors 3, the calculation of covariance matrix eigenvalues greater than the threshold number of 4, in descending order of eigenvalue 5, remove the smaller eigenvalue 6, remove the larger eigenvalue (usually not this step) 7, the combined choice of eigenvalues 8, select the appropriate eigenvalues and eigenvectors 9, computing whitening matrix 10, principal component extraction)
- 2021-03-09 13:09:27下载
- 积分:1
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DFT_ang
在uVision环境下用C编程,用离散傅里叶变换可以计算出频率的值(In uVision environment using C programming, using discrete Fourier transform frequency value can be calculated)
- 2010-09-22 18:03:09下载
- 积分:1