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In this paper i try to associate a linear dynamical system dX/dt=AX to the PDE wave equation.So i discretize the space to step h,and set the limited develpment.it is well application also for spherical wave.J.C Willems gives good standing from ODE to PDE,and From PDe to ODE.

It is Time Reversal simulation in Matlab. Black circle is obstacle. Trialgle is detected obstacle position, red points is transmitters/receivers. It is 2d wave equation solution. Borders absorbs waves but not ideally so small reflection from borders exist. The waves are reflected from obstacle....

Matlab files include Gaussian numerical quadrature, Newton's method for finding roots, finite element method for 1D wave equation, and pattern formation (KPP anda system of two coupled PDEs).


Platforms: Matlab

Planar String is a small program written in Java that allows to explore the evolution of an elastic string moving in the plane. Mathematically, it provides some insight into the dynamics of the wave equation. The motion of the string is prescribed by configuring its positions at time 0 and at...


Platforms: Windows

This set of simulations make use of the Alternating Direction Implicit method for solving the parabolic wave equation that arises in FD BPM.The zip file includes the following programs:FDBPM3D_free_space.m - Animation and video of the 3D propagation.FDBPM3D_free_space_slice.m - It shows slices of...


Platforms: Matlab

The Circular Membrane Modes model displays the analytical wave equation solution for an ideal circular membrane with a fixed boundary. The solution is described by two integers m and n where n is a positive integer that counts the number of radial nodes and m counts the number of azimuthal...


Platforms: Mac

Planar Elastic String is a small, Java based application specially designed to enable users to explore the evolution of an elastic string moving in the plane. Mathematically, it provides some insight into the dynamics of the wave equation. for WindowsAll


Platforms: Windows

A Fast MAC based 3D Free surface fuid solver. Capable also of simulating viscoelastic fluids.Includes also wave equation solver for simulating shallow water phenomena.


Platforms: Windows, Mac, BSD, Linux

Global tsunami can be started with asteroid impact or earthquake or thermonuclear bomb. It simulated with 2d wave equation. It is wave equation on sphere surface. Land influence neglected. triangular mesh used. The method is some kind of finite difference method. See fromulas in laplacian.jpg...


Platforms: Matlab

The Two Dimensional Schrodinger Equation model simulates the time evolution of a two-dimensional wave packet as it moves towards a slit with an obstacle in it, both with variable widths. By changing three parameters via sliders provided, slit width, obstacle width, and initial position of the...


Platforms: Mac

This function gets the nomograph which shows the relationship between the wavelength, wave period and water depth using the dispersion equation.0. Syntax:>> wavelenvsth1. Inputs: None.2. Outputs: Nomograph.3. Example: >> run(wavelenvsth) 4. Notes:- It's only necessary to run the function.- In the...


Platforms: Matlab

Free Wave Editor v1.7 is an advanced wav file editor that offers many functions not found in other editors. We have spent considerable time and money to bring you this product as a way of introduction to our Xtreme Audio Editor. Features... 1. Open ( Open ), create ( New ) and save (...


Platforms: Windows

Wave Editor is a fast and easy digital audio editing software for Windows. It provides powerful and user-friendly editing environment which suits beginners especially and perform basic editing capabilities like: cut, copy, paste and delete parts of recording. Unlike the other sound editors based...


Platforms: Windows

KISS WaveEditor is a complete, simple wave editor. KISS makes editing WAV files as easy as editing text with its clear user interface and powerful effects. Our wave form editing window allows you to find the part you want to edit quickly. With KISS you can edit WAV files you download from the...


Platforms: Windows

Equation grapher is an easy-to-use software for 2D function graphing. 2D function graphs can be plotted in Cartesian and polar coordinate systems .Equation grapher is an easy-to-use software for 2D function graphing. 2D function graphs can be plotted in Cartesian and polar coordinate systems...


Platforms: Windows

Chemical Equation Expert is an integrated tool for chemistry professionals and students. You'll find complicated work such as balancing chemical equations and related calculations so easy and even enjoyable! Key Feafures - 1. An intelligent balancer Chemical Equation Expert balances chemical...


Platforms: Windows

WAVE Utilities package contains three programs for dealing with WAVE format audio files. SimplifyWave The standard permits WAVE format audio files to contain a variety of chunks, such as playlists, cue lists, and padding. A fair amount of software, however, is unable to parse such complex...


Platforms: *nix

Modest Ordinary Differential Equation Library is a C++ library to model rate equations. MODEL is a numeric simulation library written during my PhD to simulate systems of rate equations describing Vertical Cavity Surface Emitting Lasers (VCSELs). I decided to write one myself after looking at...


Platforms: *nix

Shoot realistic underwater video clips with free wave plugin for Adobe After Effects! Wave FX adds realistic wave effect to videos in just a couple of clicks. Simulate different liquids with various opacity, viscosity, surface tension and inertia. Seven configuration settings offer endless...


Platforms: Windows

Wave MP3 Editor Classic is a complete audio editor and recorder. Wave MP3 Editor makes editing WAV files as easy as editing text with its clear user interface and powerful effects. Our wave form editing window allows you to find the part you want to edit quickly. With Wave MP3 Editor you can edit...


Platforms: Windows