Darcy Law Equation

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. Platforms: Matlab

Boundary Control via Modified Smith Predictors for Beam Equation with Delayed Boundary MeasurementSmith predictor and its variants are applied to the boundary control of Euler-Bernoulli beam equation with delayed boundary measurement. The well-known instability problem due to a small time delay... Platforms: Matlab

Solves nonlinear diffusion equation which can be linearised as shown for the general nonlinear diffusion equation in Richtmyer & Morton [1]. The approach is to linearise the pde and apply a Crank-Nicolson implicit finite difference scheme to solve the equation numerically.Matlab run... Platforms: Matlab

This Matlab program Solve N-equation with Gauss elimination method and check results with Matlab Function. Platforms: Matlab

The linear Stochastic Differential Equation (LSDE) is very widely used equation in the noise analysis of LTI circuits. It involves the input signal to be perturbed with Gaussian white noise. To find the solution statistics like mean, varaiance is a tasking job and requires full power of... Platforms: Matlab

This programme is about finding many examples of Ramanujam's Diophantine Equation. For mathematical formulas used in making this programme, I have referred to the article MATHEMATICAL MINIATURE 9.pdf by John Butcher, butcher@math.auckland.ac.nz.To circumvent the problem of editing the Greek... Platforms: Matlab

This m files is basically for the calculation of the Geometric Probability Law.In this file we change the value of p and k in it. Platforms: Matlab

This code solves biot savarts law to evaluate magnetic field from a circular coil at all points in the plane which is perpendicular to the plane of the coil.coil is situated in the X-Y plane centered at origin having radius =6 and we want to evaluate magnetic field at all points in the Y-Z plane.... Platforms: Matlab

Compute the equation of time with accuracy on the order of seconds. This routine can handle multiple millenniums.Function Call With Time String:>> EQtime = EquationOfTime('2000/01/01 00:00:00');Function Call With Julian Date:>> EQtime = EquationOfTime(2451544.5);Input List:UTCjd (Coordinated... Platforms: Matlab

following files are there:Eason Fenton Equation.mSteepest Descent .m and other two important files. Platforms: Matlab

-Objective of the program is to solve for the steady state voltage distribution of a microstrip line in air using FDM of Laplace's equation. The x dimension is 7 units in length and y dimension is 2 units in length, of the entire simulation domain. A microstrip of 1 unit length in x-direction is... Platforms: Matlab

Equation fitting (kinetic constants and other parameter estimation): - Classical model - Klimpel model - Kelsall model - Modified Kelsall model - Gamma model - Fully mixed modelAlgorithm: - constrained optimization - unconstrained (Levenberg-Marquardt) algorithmSupport for: - saving data (xls,... Platforms: Matlab

% This Function solves a bilateral matrix quadratic equation% of the form AX+XB+XCX+D = 0 for X% Inputs : Matrices A,B,C, D of appropriate dimensions%% Output : The Matrix X - if a solution exists Platforms: Matlab

fractPC.m provides the Predictor-corrector Method for fractional order Relaxation-Oscillation equation (u_t_alpha=-B u(t)+f(t), 0 Platforms: Matlab

Solves a common algebraic Riccati equation using Schur decomposition.This function solves an algebraic Riccati equation of the form:A'*X + X*A' - X*G*X + Q = 0,where A, G, and Q are given and X is the symmetric solution. All terms are real nxn matrices and G and Q are positive semi-definite.A... Platforms: Matlab

http://simulations.narod.ru/Solve 2d wave equation with Finite Difference Method. Theory described in description.docx. Droplet put on the water surface to start waves. There is a decay in wave equation. conv2 function used for faster calculations.as_colormap.m - visualization of waves as... Platforms: Matlab

MATLAB fsolve is frequently used to solve nonlinear algebraic equation systems. This utility makes it simple. User enters initial guesses and equations. The equations will be solved automatically after user clicks the Run button. Residual values are also displayed for user to judge the quality of... Platforms: PHP

A Graphical User Interface (GUI) has been developed to solve the Falkner-Skan equation. This famous nonlinear third order Falkner-Skan equation on infinite interval describes several fluid dynamic problems under varying the value of two constant coefficients. The developed GUI enables the user to... Platforms: PHP

The EJS Linear Charge Gauss's Law model shows a Gaussian surface and allows for the measurement of the charge enclosed and surface area of the surface. Users can change the radius of the linear charge as well as the size of the Gaussian surface. Users can modify this simulation if Ejs is... Platforms: Mac

The Newton's Law of Cooling model computes the temperature of an object of mass M as it is heated by a flame and cooled by the surrounding medium. The model assumes that the temperature T within the object is uniform. This lumped system approximation is valid if the rate of thermal energy... Platforms: Mac