Ordinary Diffrention Equation

VLE is a multi-modeling and simulation environment to study complex dynamic systems. VLE is based on the discrete event specification DEVS. and it implements the DSDE formalism (A merge of Dynamic Structure DEVS, DSDEVS, with Parallel DEVS, PDEVS). VLE provides a complete set of C++ libraries,...

Equation is a useful software that can let you study and solve the equations of the second degree, enter only the values of a, b, and c and this software will do the rest. Once all the values are entered, the application will display the value of Delta.

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

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

I have about a hundred MATLAB routines related to econometrics, statistics and introductory economics teaching, which are written mostly in my spare time in the past years. Most of these MATLAB functions / scripts are supplied with a graphic user interface so that so you may estimate the model...


Platforms: Matlab

See how the equation form of Ohm's law relates to a simple circuit. Adjust the voltage and resistance, and see the current change according to Ohm's law. The sizes of the symbols in the equation change to match the circuit diagram.


Platforms: Mac

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

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

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

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

It needs highest power and coefficients of the characteristic equation. It will also comment on stability of the system.


Platforms: Matlab

Sound speed in sea water as function of depth, temperature and salinity using nine-term Mackenzie equation


Platforms: Matlab

This example shows how to find the displacement and supply it as a shift in a custom equation.


Platforms: Matlab

Graphical user interface (GUI) is used to solve up to two ordinary differential equations (ODEs). Results can be plotted easily. Choose between MATLAB's ode45 (non-stiff solver) or ode15s (stiffer solver).This is primarily a teaching tool.


Platforms: Matlab

Enter the coefficients for the Ax2 + Bx + C = 0 equation and Quadratic Equation will output the solutions and plot(if they are not imaginary).


Platforms: Matlab

In the program, we obtain equilibrium constants, compressibility factors, molar volumes and densities using the Soave-Redlich-Kwong equation of state. We find the same results as those given by Henley and Seader in Equilibrium-Stage Separation Operations in Chemical Engineering, Wiley, 1981...


Platforms: Matlab

Iterative, robust fit of the exact equation of a circle to xy data. Outliers are identified based on multiples of current standard deviation and "set aside". The interative solution proceeds until there are no remaining outliers. Returns xo,yo,R, terminal outlier criterion, and residuals vector.


Platforms: Matlab

Flow past a wedge is governed by the Falkner-Skan equation. This equation admits only numerical solution, which requires the application of the shooting technique. The program plots the velocity for various wedge angles. The result obtained is in agreement with figure 8-10 in page 352 of Deen's...


Platforms: Matlab