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NumericalCalEField
书籍工程电磁场数值计算，包括有限差分法、有限元法、矩量法和边界元法以及电磁场的逆问题(Engineering books electromagnetic field numerical calculation, including the inverse problem of the finite difference method, finite element method, the method of moments and the boundary element method, and electromagnetic fields)
- 2012-12-04 21:34:03下载
- 积分：1
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preCG
预处理CG算法，在进行共轭梯度法之前先对系数矩阵进行预处理，再进行迭代(pretreatment congruent gradient)
- 2020-08-07 23:08:38下载
- 积分：1
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TILT_v1_04
一种求解低秩矩阵和稀疏矩阵的方法，在图像中的应用广泛。(a inprove method to find low-rank and sparse matrix。)
- 2021-01-08 21:28:51下载
- 积分：1
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fracture_network
随机生成裂缝网格，由于地下水文学模拟，及裂缝网格连通性计算。(Randomly generated grid of cracks, due to subsurface hydrology simulation and calculation of cracks grid connectivity.)
- 2016-01-18 11:59:09下载
- 积分：1
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lm
说明： levenberg-maquardt最小二乘拟合算法(This program do the levenberg-maquardt LS fit.)
- 2012-02-29 09:56:40下载
- 积分：1
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蒙特卡罗方法用于随机过程的处理Monte-Carlo-method
蒙特卡罗方法用于随机过程的处理，其重要应用软件如geant4，本书详细介绍了蒙卡的理论和应用，有很好的参考价值(Monte Carlo method is used for treatment of stochastic processes, and its important applications such as geant4, the book details the theory and application of Monte Carlo, have a good reference value)
- 2013-06-15 15:10:54下载
- 积分：1
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Matrix
很好用的有关矩阵的各种操作，包括求逆，特征值，特征向量，svd分解等(good part of the matrix of various operations including inverse, eigenvalues, eigenvectors, svd decomposition, etc.)
- 2020-10-31 16:39:55下载
- 积分：1
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fftbianhuan
test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。
signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。(test1.txt the first time as t, 0.001s for the step the second as the system input signal the third as the system output signal. signal_analyzer.m first test1.txt data read workspace, and then proceed to FFT, analysis of the two signals in the frequency, the output for input amplitude attenuation (db), the output of the input phase difference.)
- 2008-12-13 02:19:50下载
- 积分：1
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triangulation
三角形网格上的线性有限元方法求解Helmholtz问题，多项式重构以及Richardson外推(solve the Helmholtz equation with robin boundary condition on triangulation mesh, PPR and Richardson extrapolation)
- 2020-06-16 07:20:01下载
- 积分：1
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Riemannmain
用Roe格式求解黎曼激波管问题的Fortran源代码。可以通过MUSCL插值来提高求解精度。适合计算流体力学的初学者参考学习。(Riemann shock tube problem with Roe scheme. You cam improve the accuracy by MUSCL interpolation. This code is suitable for CFD beginners.)
- 2020-12-31 09:48:58下载
- 积分：1
