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FFT4
计算按频率抽取的基4快速傅里叶变换算法,与基2FFT相比,基4FFT的乘法量约减少25 。(Calculating frequency taken by fast Fourier transform algorithm base 4, compared with the base 2FFT the base 4FFT multiplication about 25 less.)
- 2020-11-22 11:29:35下载
- 积分:1
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Complex-valued_matrix_derivatives
关于复数矩阵求导的一本经典书籍“Complex-valued_matrix_derivatives”的电子版(About the electronic version of the complex matrix derivation of a classic book " Complex-valued_matrix_derivatives" )
- 2013-04-08 16:00:31下载
- 积分:1
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SwarmOpsMatlab1_1
说明: 该蠕变子程序能够进行高温长时间应力下的应力应变分析以及松弛行为(The creep subroutine can be used for stress-strain analysis and relaxation behavior under high temperature and long time stress)
- 2020-02-28 10:07:57下载
- 积分:1
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foutiu
小波包分析提取振动信号中的特征频率,大学数值分析算法,计算互信息非常有用的一组程序。( Wavelet packet analysis to extract vibration signal characteristic frequency, University of numerical analysis algorithms, Mutual information is useful to calculate a set of procedures.)
- 2017-03-15 00:05:37下载
- 积分:1
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test_read_file
实现了对文档的数据读入,实现了文档的数据读入(The realization of the document data read into, The realization of the document data read into, )
- 2013-08-14 02:15:23下载
- 积分:1
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Partial_Differential_Equation
一阶偏微分方程的基础知识,很容易入门,很多工程处理要用到的(Introduce the basic knoeledge of Partial Differential Equation)
- 2010-12-24 17:15:05下载
- 积分:1
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digitalfiltercode
圆周卷积滤波器,可清晰见到实际滤波器的算法(Circular convolution filter, can clearly see that the actual filter algorithm)
- 2007-12-10 09:14:25下载
- 积分:1
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conductive_dielectric_cylinder
导体柱柱涂覆介质环的电磁散射特性解析计算(Optimization and Analysis of Electromagnetic Scattering Characteristic for conductive Dielectric Cylinder)
- 2011-06-23 22:14:02下载
- 积分:1
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MATLAB
利用五点差分格式和Jacobi迭代法,求解精确解和数值解的误差,判断阶数是否正确(Five-point difference scheme and Jacobi iteration method are used to solve the error between exact solution and numerical solution and to judge whether the order is correct or not.)
- 2020-06-23 08:20:02下载
- 积分:1
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CPPsimplex
单纯形法,求解线性规划问题的通用方法。单纯形是美国数学家G.B.丹齐克于1947年首先提出来的。它的理论根据是:线性规划问题的可行域是 n维向量空间Rn中的多面凸集,其最优值如果存在必在该凸集的某顶点处达到。顶点所对应的可行解称为基本可行解。单纯形法的基本思想是:先找出一个基本可行解,对它进行鉴别,看是否是最优解;若不是,则按照一定法则转换到另一改进的基本可行解,再鉴别;若仍不是,则再转换,按此重复进行。因基本可行解的个数有限,故经有限次转换必能得出问题的最优解。如果问题无最优解也可用此法判别。
(Simplex method for the minimum)
- 2011-09-18 22:57:30下载
- 积分:1