这是一个模拟第3类模式地震波的matlab脚本。 This a collection of Matlab scripts that solve the antiplane (mode III) earthquake dynamic problem with slip-weakening friction, on a 1D fault embedded in a 2D homogeneous elastic unbounded medium. The problem is formulated as a boundary integral Equation and the elastodynamic kernels are analytically derived in the spectral domain (spatial wavenumber). The method is explained e.g. by Morrysey and Geubelle (1997), and has been improved and extensively used by Nadia Lapusta, Alain Cochard, etc.
标签: collection antiplane scripts matlab
上传时间: 2013-12-25
上传用户:远远ssad
ami_snake算法源代码,ami_snake is an implementationof the 2D snake technique proposedin . It is alevel set method based on the partial di¡ èerential Equation.
上传时间: 2016-04-09
上传用户:wangyi39
matlab 求解微分方程 ,This module Does FEM analysis of a field problem when the Governing differential Equation
上传时间: 2016-06-02
上传用户:二驱蚊器
数值分析算法源码(java) 这个学期一边学习java一边学习数值分析,因此用java写了一个数值分析算法的软件包numericalAnalysis. [说明] 适合使用者:会java的,想要学习数值分析算法的人. 本代码对照书:数值分析第二版,史万明等编,北京理工大学出版社. 本代码尽量按书中描述的来写,可以提供参考. [使用方法] 在java的ide中新建一个项目,把numericalAnalysis包直接拷贝到此项目的源文件夹中,然后要解决什么问题,就相应的编译运行什么包. 另外有这些类的API提供参考,可以自己根据自己要求写驱动类.运行API文件夹中的index.html文件就行. [包的结构] numericalAnalysis包中又含有9个包,除function包的是接口外,其余包都含有一个独立的数值分析问题的类以及其驱动类.9个包如下: differential:微分问题 Equation:方程 function:只含一个接口,用来让用户写自己的函数 functionApproximation:离散情况下函数逼近问题 integration:积分问题 interpolation:插值问题 linearEquationGroup:线性方程组问题(包括过定方程组) norm:求解向量和矩阵的范数 ode:常微分方程数值解的求解
标签: java numericalAnalysis 数值分析 算法
上传时间: 2014-01-03
上传用户:wff
The main features of the considered identification problem are that there is no an a priori separation of the variables into inputs and outputs and the approximation criterion, called misfit, does not depend on the model representation. The misfit is defined as the minimum of the l2-norm between the given time series and a time series that is consistent with the approximate model. The misfit is equal to zero if and only if the model is exact and the smaller the misfit is (by definition) the more accurate the model is. The considered model class consists of all linear time-invariant systems of bounded complexity and the complexity is specified by the number of inputs and the smallest number of lags in a difference Equation representation. We present a Matlab function for approximate identification based on misfit minimization. Although the problem formulation is representation independent, we use input/state/output representations of the system in order
标签: identification considered features separati
上传时间: 2016-09-20
上传用户:FreeSky
A Matlab toolbox for exact linear time-invariant system identification is presented. The emphasis is on the variety of possible ways to implement the mappings from data to parameters of the data generating system. The considered system representations are input/state/output, difference Equation, and left matrix fraction. KEYWORDS: subspace identification, deterministic subspace identification, balanced model reduction, approximate system identification, MPUM.
标签: identification time-invariant presented emphasis
上传时间: 2013-12-28
上传用户:wfl_yy
This m file simulates a differential phase shift keyed (DPSK) ultra wide bandwidth(UWB) system using a fifth derivative waveform Equation of a Gaussian pulse.
标签: differential bandwidth simulates system
上传时间: 2014-01-03
上传用户:784533221
数值分析高斯——列主元消去法主程序 说明如下: % a----input,matrix of coefficient % b----input,right vector % sol----output,returns the solution of linear Equation
标签: input coefficient matrix vector
上传时间: 2016-12-31
上传用户:dancnc
Mapack可用来做矩阵运算 Mapack is a .NET class library for basic linear algebra computations. It supports the following matrix operations and properties: Multiplication, Addition, Subtraction, Determinant, Norm1, Norm2, Frobenius Norm, Infinity Norm, Rank, Condition, Trace, Cholesky, LU, QR, Single Value decomposition, Least Squares solver, Eigenproblem solver, Equation System solver. The algorithms were adapted from Mapack for COM, Lapack and the Java Matrix Package.
标签: Mapack computations supports algebra
上传时间: 2017-01-26
上传用户:tb_6877751
This is a short text on arrays and pointers in C with an emphasis on using multi-dimensional arrays. The seemingly unrelated C rules are explained as an attempt to unify arrays and pointers, replacing arrays and the basic array Equation by a new notation and special rules
标签: multi-dimensional emphasis pointers arrays
上传时间: 2017-03-08
上传用户:13215175592