Differential Equation Solution

A simple example for beginners in MATLAB to solve the differential eq using built in functions of differential equation solvers.Copy the files in the workspacerun "dxdt_solve"dxdt.m contains differential equation Platforms: Matlab

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

This programs gives solution of 2nd order differential equation with variable coefficients by Rayleigh Ritz method using linear interpolation Platforms: Matlab

A differential equation can be solved by several methods. I have presented the simulink method to solve the differential equ. The que is showed in the screenshot.Queries and Comments are dearly invited. 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

The Ikeda Delay Differential Equation model shows the dynamics of a delay differential equation that depends on the value of the dynamical variable x(t) at a previous time x(t-?). Sprott shows that these systems provide elegant examples of chaos in systems that are too simple to exhibit chaos... Platforms: Mac

Basic example for beginners, that shows how to solve the differential equation through S-Function****************DIFFERENTIAL EQ. SOLUTION THROUGH S-FUNCTION*********************************"Instructions for Simulink"*************************1.Goto simulink library browser and expand... Platforms: Matlab

ODEcalc for Windows: An Ordinary Differential Equation (ODE) Calculator! State your equation and boundary or initial value conditions and it solves your problem. Plots solution y and derivative ydot versus x. Solves most Boundary Value Problems (BVP) and Initial Value Problems (IVP) for... Platforms: Windows, Windows 8, Windows 7, Windows Server

FDE12 solves an initial value problem for a non-linear differential equation of fractional order (FDE).This is an implementation of the predictor-corrector method of Adams-Bashforth-Moulton described in [1]. Convergence and accuracy of the method are studied in [2]. The implementation with... Platforms: Matlab

A simple partial differential equation (PDE) with boundary conditions is examined:d/dx( x dy/dx ) = xy(0) = y(1) = 0.Integrate the PDE twice to get its solution. Then apply the boundary conditions and get a contradiction. The boundary value problem(BVP)has no solution.Regardless, apply the finite... Platforms: Matlab

This function estimates the solution to Kummer's differential equation within a specified tolerance. Kummer's differential equation is given by: x*g''(x) + (b - x)*g'(x) - a*g(x) = 0The code executes a while loop to calculate the generalized hypergeometric series within a specified... Platforms: Matlab

ALL-IN-ONE MULTI-PHYSICS FINITE ELEMENT MODELING Ever wish there was a flexible system for solving all the partial differential equation problems that come up in science and engineering, so you didn't have to buy and learn a new software tool for each problem? Well, now your wish has come... Platforms: Windows, Mac, Linux

the function is GUI that simulate double pendulum by using 4th-order Runge-Kutta algorithm for the differential equations.the differential equation are very similar to eq. (12) and (13) here:http://home1.fvcc.edu/~dhicketh/DiffEqns/spring09projects/LauraStickel/Double%20Pendulum.pdf 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

Fortran Calculus Compiler: Calculus level computer languages are Fortran Calculus and PROSE. Both languages are based on what is called "Automatic Differentiation" (AD). Calculus languages simplify computer coding to an absolute minimum; i.e., a mathematical model, constraints, and the objective... Platforms: *nix

Convective Adsorption - Desorption software is used to study water diffusion processes with known experimental data, for the following geometries: infinite slab, infinite cylinder, sphere, finite cylinder and parallelepiped. The software makes possible the determination of the diffusivity "D" and... Platforms: Windows

yades - 'yet another differential equation solver'. This Java application solves ordinary differential equations (ODE) numerically and displays the results as tables, graphs, direction fields or vector fields. Platforms: Windows, Mac, Linux

examples from book: MATLAB and Simulink, 3e: User's Guide) by Bogumila and Zbigniew MrozekAuthor: Bogumila & Zbigniew MROZEKPublisher: Helion.pl 2010 Platforms: Matlab

Thee purpose,1. Speed up the convergence of correcting for each points (By newton method).2. To find the first few points by this method instead of R.K. method.3. To apply for higher order polynomial fitting. Platforms: Matlab

HYPERGEOMETRIC2F1 Computes a hypergeometric function using the series expansion:f(a,b;c;x)=1 + [ab/1!c]x + [a(a+1)b(b+1)/2!c(c+1)]x^2 +[a(a+1)(a+2)b(b+1)(b+2)/3!c(c+1)(c+2)]x^3 + ...This function solves the Gaussian Hypergeometric Differential Equation:x(1-x)y'' + {c-(a+b+1)x}y' - aby = 0 Platforms: Matlab