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nonlinear_optical_fiber
信号光在光纤中受色散,自相位调制,交差相位调制效应影响时的非线性传输方程的求解.(By the signal light in the fiber dispersion, self phase modulation, cross phase modulation effects in nonlinear transmission equation.)
- 2010-09-27 10:05:18下载
- 积分：1
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pwxcf
抛物线差分格式求解，包括一维古典显格式，DFF格式，CN格式，局部一维方法和预测校正格式的求解；文件中有具体的题目及解法说明并还有matlab程序供大家参考；易读易懂。 (Difference scheme for solving parabolic, including the one-dimensional classical explicit schemes, DFF format, CN format, local one-dimensional methods and predictor-corrector format to solve file specific description of the subject and method, and there are matlab program for your reference Easy to read understand.)
- 2011-01-26 11:05:03下载
- 积分：1
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4
说明： 这是一个画等值线的图形源程序文件，比较实用(This is a contour drawing graphics source file, more practical)
- 2010-03-31 15:31:56下载
- 积分：1
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lambert
gives the initial and final velocities of a trajectory connecting R0 to Rf over a transfer time of dT. This method uses universal variables, from Vallado.
- 2013-09-27 00:08:23下载
- 积分：1
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matlab_FEM_dismesh
DistMesh giving a singular FEM matrix?(Hi
Anyone here with some experience of using DistMesh in finite element code? I m solving the scalar Helmoltz equation in an annular region in 2D:
rho_1 < rho < rho_2
where rho_1 is the radius of a Perfect Electric Conducting cylinder and rho_2 is where the mesh is truncated using an Absorbing Boundary condition.
Now, I ve written code to mesh the region myself (by dividing the region into annular rings and picking a fixed number of points on each ring) and I ve written another program which uses DistMesh to mesh the region. I get a nice solution using my own meshing code but the FEM matrix becomes singular when I use DistMesh. This is the DistMesh Code I used:
Circle with hole
rABC=1.5
rCyl=0.5
fdstring=sprintf( ddiff(dcircle(p,0,0, f),dcircle(p,0,0, f)) ,rABC,rCyl)
fd=inline(fdstring, p )
box=[-2,-2 2,2]
[p,N]=distmesh2d(fd,@huniform,0.04,box,[])
I tried changing box and the 0.04 value (initial edge length). But every time, the matrix becomes sin)
- 2010-06-05 09:17:55下载
- 积分：1
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ele
说明： 自动化测试工具，便于自动化测试的实现，忘下载(automation testing)
- 2011-04-06 11:27:13下载
- 积分：1
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Fgabortb-v041o
外国人写matlab 的gobor特征运算工具箱，包括括一，二维gobor特征提取工具。，已通过测试。
(, Including including a. Dimensional gobor feature extraction tools the foreigners write matlab gobor characteristics computing toolbox. , Has been tested.)
- 2012-09-30 19:32:40下载
- 积分：1
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matlab
本程序是智能算法：鱼群算法的函数和一个例子，在matlab10.0上经测试，可以完美运行(This program is a smart algorithm: a function and an example of the fish swarm algorithm has been tested and works perfect matlab10.0 on)
- 2012-11-18 21:19:57下载
- 积分：1
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1807.01622
深度神经网络在函数近似中表现优越，然而需要从头开始训练。另一方面，贝叶斯方法，像高斯过程（GPs），可以利用利用先验知识在测试阶段进行快速推理。然而，高斯过程的计算量很大，也很难设计出合适的先验。本篇论文中我们提出了一种神经模型，条件神经过程（CNPs），可以结合这两者的优点。CNPs受灵活的随机过程的启发，比如GPs，但是结构是神经网络，并且通过梯度下降训练。CNPs通过很少的数据训练后就可以进行准确的预测，然后扩展到复杂函数和大数据集。我们证明了这个方法在一些典型的机器学习任务上面的的表现和功能，比如回归，分类和图像补全(Deep neural networks perform well in function approximation, but they need to be trained from scratch. On the other hand, Bayesian methods, such as Gauss Process (GPs), can make use of prior knowledge to conduct rapid reasoning in the testing stage. However, the calculation of Gauss process is very heavy, and it is difficult to design a suitable priori. In this paper, we propose a neural model, conditional neural processes (CNPs), which can combine the advantages of both. CNPs are inspired by flexible stochastic processes, such as GPs, but are structured as neural networks and trained by gradient descent. CNPs can predict accurately with very little data training, and then extend to complex functions and large data sets. We demonstrate the performance and functions of this method on some typical machine learning tasks, such as regression, classification and image completion.)
- 2020-06-23 22:20:02下载
- 积分：1
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FCM
模糊聚类分析传递闭包算法FCM的matlab程序，能对数据进行分类处理(Fuzzy Cluster Analysis of transitive closure of the FCM algorithm matlab program can deal with data classification)
- 2008-03-12 17:43:45下载
- 积分：1
