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css
用visual basic编译的布谷鸟算法的源代码,是一种很好地启发式智能算法。(Use visual basic compiler cuckoo algorithm source code, is a good heuristic intelligent algorithm.
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- 2013-07-19 17:02:51下载
- 积分：1
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四面体单元
针对三维问题，建立四面体单元的有限元方法(Finite element method for establishing tetrahedron element)
- 2017-08-09 20:29:13下载
- 积分：1
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rk4
这是四阶的龙格库塔算法和lyapunov指数稳定性。(tihs is a runge kutta method )
- 2012-12-13 11:06:20下载
- 积分：1
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fit
基于Levenberg-Marquardt的曲线/面拟合(C library for Levenberg-Marquardt least-squares minimization and curve fitting)
- 2014-02-14 04:20:28下载
- 积分：1
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bayes
some article about Bayes Thinking
- 2019-05-19 18:58:45下载
- 积分：1
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2011MHD--wangxiaogang.zip
这是2011年中国等离子暑期学校关于磁流体力学（MHD）的讲义，授课的老师是北京大学的王晓刚教授，非常经典！(This is the 2011 China Summer School on magnetic plasma hydrodynamics (MHD) lectures, taught at Peking University Professor Wang Xiaogang teacher, very classic!)
- 2021-05-14 09:30:02下载
- 积分：1
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AnalyticAnelastic
二维粘弹性介质中波的传播的解析形式。应用Carcione等在1988年发表的《WAVE PROPAGATION SIMULATION IN A LINEAR VISCOELASTIC MEDIUM》一文中的方法，更加详细的介绍见英文描述。该代码对于做波场模拟的同学有很好的参考价值。( MATLABScript for obtaning the analytical solution for 2D wave propagation in a viscoelastic medium, based on the Appendix B of paper of Carcione et al. (1988)(1), corrected in (2).
The source used is a Ricker wavelet in the y velocity component.
A figure of the source temporal function and its inverse Fourier transform are provided to verify the good working of the method. Also works for elastic variables by substituting the values of vp and vs by real constant ones (vp_0 & vs_0).
Attenuation is implemented by GMB-EK rheology presented in (4) and thoroughfully explained in (3).
In order to make a proper comparison with numerical data it is recommended to either use the same rheology in both the numerical and the analytical. It is also possible to get an almost constant Q value by increasing a lot the number of mechanisms used in both the numerical and the analytical solutions, thus minimizing the effects of the Q fitting in the comparison.)
- 2012-04-23 13:18:07下载
- 积分：1
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2Dforce-based-non-prismatic-element
Mathematica计算基于力平衡变截面梁单元的质量和刚度矩阵(2D force-based finite element mathemaica)
- 2020-11-26 16:09:32下载
- 积分：1
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zxecf
一个集交互式和命令式于一体的程序，采用最小二乘法进行曲线的拟合(A set of interactive and command-style in one program, using least-squares curve fitting method)
- 2009-12-15 10:49:31下载
- 积分：1
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qang-bs46
sar图像去噪的几种新的方法，数学方法是部分子空间法，实现典型相关分析。( Several new methods sar image denoising, Mathematics is part of the subspace, Achieve canonical correlation analysis.)
- 2017-04-02 17:37:58下载
- 积分：1
