Differential Equations
This software has been realized by Bret Fortenberry at the CNS Technology Lab at Boston University (http://techlab.bu.edu/). A model to show the properties of EPSPs and IPSPs in the postsynaptic cell. The model allows a user to adjust the number of EPSP and IPSP inputs, the rise and fall times...
Platforms: Matlab
License: Freeware | Size: 2.5 MB | Download (39): Excitatory and inhibitory post-synaptic potentials Download |
The libMesh library provides a framework for the numerical simulation of partial differential equations using arbitrary unstructured discretizations on serial and parallel platforms. libMesh currently supports 1D, 2D, and 3D steady and transient finite element simulations. The library makes use...
Platforms: Mac
License: Freeware | Size: 6.09 MB | Download (45): libMesh Download |
The Circular Well model displays the 2D energy eigenstates of a particle trapped in a very deep two-dimensional circular well. Because the Schr?*A*dinger equation for this system is separable into radial and angular differential equations, the solution can be expressed as a product of a Bessel...
Platforms: Mac
License: Freeware | Size: 1.24 MB | Download (39): Circular Well Model Download |
FuncDesigner is a computer algebra system (CAS) written in Python + NumPy as an ordinary Python module (thus making it free to combine with any other Python or Python-connected code). That makes it cross-platform (Linux, Windows, Mac OS X etc), with completely free license: BSD. It can be used...
Platforms: *nix
License: Freeware | Size: 112.64 KB | Download (36): FuncDesigner for Linux Download |
This script allows you to runĀ a linear equations solver using eval and built-in complex numbers.One could add one more line to insert '*' where needed, i.e. "100x" -> "100*x", add some input validation, in particular check whether the equation is actually linear and not quadratic or cubic, and...
Platforms: Windows, Mac, *nix, Python, BSD Solaris
License: Freeware | Download (58): Linear equations solver Download |
Basic Differential Encoding/Decoding of input vector of numeric valuesdiffencodeve.m : Differential Encoding functiondiffdecodevec.m : Differential Decoding functiondiffencodevecTest.m : Test Program for Differential Encoding/Decoding.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Differential Encoding/Decoding Download |
Lagrange is a function that calculate equations of motion (Lagrange's equations) d/dt(dL/d(dq))- dL/dq=0. It Uses the Lagrangian that is a function that summarizes thedynamics of the system. Symbolic Math Toolbox is required.
Platforms: Matlab
License: Freeware | Size: 10 KB | Download (46): Lagrange's equations Download |
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
License: Freeware | Size: 10 KB | Download (41): Simulink solution of Differential Equation Download |
X2 - Equations calculates the real roots of rational second grade equations, showing the results with fractions (Yeah!) It also gives geometric info related to the parabola.
Platforms: Windows
License: Freeware | Size: 120 KB | Download (146): X2 - Equations Download |
The APMonitor Modeling Language is optimization software for differential and algebraic equations. It is coupled with large-scale nonlinear programming solvers for data reconciliation, real-time optimization, dynamic simulation, and nonlinear predictive control. It is available as a free web...
Platforms: Windows
License: Freeware | Size: 225 KB | Download (46): APMonitor Modeling Language Download |
Coupling the notion that during the search for the minimum of a function we must pass through its solution with a PSO solution generator engine, is the approach for solving, in time domain, a non-linear algebric-differential system of equations.
Platforms: Windows, Mac, Linux
License: Freeware | Size: 12.26 KB | Download (48): PSO Solution Paradox Download |
This contribution provides functions for finding an optimum parameter set using the evolutionary algorithm of Differential Evolution. Simply speaking: If you have some complicated function of which you are unable to compute a derivative, and you want to find the parameter set minimizing the...
Platforms: Matlab
License: Freeware | Size: 81.92 KB | Download (44): Differential Evolution Download |
This is a nonlinear system of differential and algebriac equations, that describe the dynamics of a continuous bioreactor. The bioreactor simulates the production of ethanol through yeast fermentation. The model is described in:Z. K. Nagy, Model Based Control of a Fermentation Bioreactor using...
Platforms: Matlab
License: Freeware | Size: 20.48 KB | Download (52): Yeast Fermentation Bioreactor for Ethanol Production Download |
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
License: Freeware | Size: 778.24 KB | Download (37): Ikeda Delay Differential Equation Model Download |
The EJS Differential Galactic Rotation Model illustrates the model of galactic rotation proposed by Jan Oort in 1927. In Oort's model most of the mass of the galaxy is concentrated at the center. Stars move in circular orbits around the center, with orbital speeds that are inversely proportional...
Platforms: Mac
License: Freeware | Size: 1.37 MB | Download (36): Differential Galactic Rotation Download |
The program solves algebraic equations. It displays the graphic of the function and a list of the real roots of the equation. It also includes the option to evaluate a function and its derivative. The application has a simple wizard-driven interface.The context sensitive help will guide you step...
Platforms: Windows
License: Freeware | Size: 661 KB | Download (703): DeadLine Download |
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
License: Freeware | Size: 3.2 MB | Download (745): Chemical Equation Expert Download |
The yildun software and service is based on a binary differential technology of top quality. After sending the initial backup version into our backup servers, the product is capable of communicating through dsl/rdsi conventional lines, the binary variation of hundreds of Gigabyte of information...
Platforms: Windows
License: Freeware | Size: 18.68 MB | Download (109): Yildun Internet Backup Download |
BrightMaRe project is a tool that translates LaTeX equations to ASCII/UTF-8 text..
Platforms: *nix
License: Freeware | Size: 163.84 KB | Download (88): BrightMaRe Download |
Laeqed is a Latex equation editor specifically targeted at producing PNG images of math equations for use on web pages. Laeqed runs wherever Java and Latex runs, i.e. Linux, Windows, Mac... The Latex equation, preamble, postamble and dvipng options are saved with the PNG as meta data. This...
Platforms: *nix
License: Freeware | Download (129): Laeqed Download |