Difference Equations

Gerris project is an Open Source Free Software library for the solution of the partial differential equations describing fluid flow. Gerris is supported by NIWA (National Institute of Water and Atmospheric research) and by the Marsden Fund of the Royal Society of New Zealand. The code is...

WDSolve is a black box solver for nonlinear hyperbolic partial differential equations. WDSolve is based on the Wave Digital method, leading to explicit finite difference schemes with superior stability properties.

a powerful, easy-to-use, equation plotter with numerical and calculus features: - Graph Cartesian functions, relations, and inequalities, plus polar, parametric, and ordinary differential equations. - Up to 999 graphs on screen at once. - New data plotting and curve-fitting features. -...


Platforms: Windows

Easy to use chroma keyer, color difference keyer and difference keyer. Mattes can be eroded and blurred. Rotoscoping for garbage mattes and more. Several spill suppression algorithms. Works with video files, AviSynth files, image sequences or single images.


Platforms: Windows

FX Equation software was designed to be an equation editor that takes the chore of formatting equations away from you. It is for people who love the output from the modern equation editors but hate using them. FX Equation automatically formats, with a minimum of input from you, just about all of...


Platforms: Windows

DateTime Report counts all date and time elements for the events based on the current time, and list the difference in the years, months, weeks, days, hours, minutes, seconds unit. Besides, it provides a powerful reminder, which can remind you of the event in any type of recurrence pattern. You...


Platforms: Windows

In this game there will be two very similar pictures, and you will need to find 5 differences in the 2 pictures. If you cannot find all the differences within the time limit, then you lose the game. You can use hints if you need help, but scores will be deducted. There are a total of 3 levels,...


Platforms: Windows

In this game there will be two pictures of different smiley faces. There will be 10 slight differences between the two pictures, such as the position of the eye and the colour of the face. You need to find out all the differences as quickly as possible. If you are stuck, there is a hint button to...


Platforms: Windows

Spot some differences between two seemingly identical pictures and find out the details of the most touching and romantic love story! Adore Picture Difference: Long Distance Love depicts a cute love story told in pictures. The main heroes are t


Platforms: Mac

Spot some differences between two seemingly identical pictures and find out the details of the most touching and romantic love story! Adore Picture Difference: Long Distance Love depicts a cute love story told in pictures. The main heroes are t


Platforms: Mac

Xem Application allows you to solve pH balance equations. Requirements: - Qt


Platforms: *nix, C/C++, BSD

Weighted Median Filter:It is same as median filter, only difference is the mask is not empty. It will having some weight (or values) and averaged.The steps to perform weighted median filtering are as follows:1) Assume a 3x3 weighted mask.2) Place the mask at the left hand corner.3) After...


Platforms: Matlab

This program aids in helping one to understand the difference between KF,EKF AND UKF.


Platforms: Matlab

Matlab implementation of a monodomain reaction-diffusion model in 2-D. The model equations are a variant of the Fitzhugh-Nagumo equations modified to simulate the cardiac action potential. The progression of the two normalized state variables, membrane voltage (v) and recovery (r), is computed...


Platforms: Matlab

Usage is as fsolve. The difference is that it can compute solutions in C^m for m-variables. Input can be both anonymous functions and symbolic equations. Subsequent calls to this function in a matlab session will not cause the recomputation of the internal matlab functions unless the input...


Platforms: Matlab

For an input of n equations, it converges to the solution.For an input of >n equations, there is no exact solution. In this case, the function minimizes sum( (individual equation errors).^2)


Platforms: Matlab

solvesimul.m can be easily adapted to solve more equations but as it stands it will solve 2 unknowns in 2 equations (1 non-linear and one linear).To solve equations of this form... a*x + b*y = A (1) a1*x^2 + b1*y^2 = B (2)...with fsolve (used by solvesimul.m) you need to rewrite them so that they...


Platforms: Matlab

It estimates the Newton Raphson optimization procedure for (m) unknowns of (n) non-linear equations. In case no Jacobian vector is presented, then the initial Jacobian vector is estimated by Broyden Method (multivariate secant approach) and it is then updated using the Sherman Morrison...


Platforms: Matlab

It is application of of Simulink Block to Cardiac PDE VI1 system of 2 non linear coupled equations of PDE and try to design solution with dicretized space and time and issue in 1D.I associate a Doc file to introduction theory.Just see this page simulink and not for run.I will next time develop...


Platforms: Matlab

This function solves the linear fractional-order differential equations (FODE) with constant coefficients. The short memory principle has not neen used here, so the length of input signal is limited to few hundred samples. The parameters of the FODE (in its standard form) are the inputs of this...


Platforms: Matlab