Mathematical Models

These files introduce how Symbolic Math Toolboxd-OC?D? can be used to evaluate Nelson Siegel and Svensson models, which are 2 widely used techniques for modeling yield data. We demonstrate how you can define the models in the MuPAD notebook interface and perform some basic analysis and...

Genetic Programming (GP) generates nonlinear input-output models of dynamical systems from input-output measurement data. This GP-OLS toolbox applies Orthogonal Least Squares algorithm (OLS) to improve the search effeciency of GP.It can be used for static equation discovery or structure...

content:+ m-file of the nonlinear model+ m-file linearization+ simulink models for the simulation system


Platforms: Matlab

Using an engine throttle valve modeling example, this demo shares some perspectives on creation of nonlinear models of dynamic systems from the measurements of its input and outputs. It describes useful workflows for approaching the task of data-based modeling using System Identification...


Platforms: Matlab

Discrete-time models: random walk, ARMA, fractional integration, GARCH). Continuous-time counterparts: Levy processes, Ornstein-Uhlenbeck, fractional Brownian motion, stochastic volatility, subordination.To walk through the code and for a thorough description, refer to A. Meucci (2009), "Review...


Platforms: Matlab

The user has to provide the program the constants and parameters of the models using a dialog box. A pop-up menu and an update button allow the user to select the plot (Txy, activity coefficients and relative volatility).A similar program using Mathematica 6.0 is available at the following...


Platforms: Matlab

Class provides simple mathematical operations with integers of any size.Integers are processed as strings using old-style schoolbook math.


Platforms: Mac

Ascape is an innovative tool for developing and exploring general-purpose agent-based models. It is designed to be flexible and powerful, but also approachable, easy to use and expressive. Models can be developed in Ascape using far less code than in other tools. Ascape models are easier to...


Platforms: Mac

Ursus Object Linker is a utility that creates groups of 3DMF (Quesa/QD3D) files from individual models for use in applications and games. Besides providing some speed and size benefits, use of object groups make streamlining and organizing object drawing code much easier.


Platforms: Mac

Console parser and calculator of mathematical expressions.


Platforms: Mac

The Ejs Inertial Oscillation model displays the motion of a particle moving over the surface of an oblate spheroid. The spheroid is flattened to an ellipsoid of revolution because it is rotating, just as the Earth is flattened because it is rotating. The particle is confined to motion along the...


Platforms: Mac

Nengo is a software package that makes it easy to develop sophisticated models of neuronal circuits. It is intended for modelling large networks of neurons (typically hundreds or thousands), using spiking point-neuron models. To get a quick sense of how to use Nengo, watch the new demo video...


Platforms: Mac

JGraphSketch is an Open Source cross-platform mathematical function plotter written in Java. You can plot Cartesian, Polar and Parametric equations with it. Here is a screen shot. You can zoom the graph, save it in a PNG file and customize each and every plot settings. The software is very...


Platforms: Mac

Adds support for loading Quake III models to the jPCT 3D engine.


Platforms: Mac

JEDI Math is a free mathematical library developed under the MPL for Delphi, Kylix, FPC and Lazarus. The library provides routines for matrices/vectors, regression, geometry, physics, equation rendering and raytracing among others.


Platforms: *nix

MODELbuilder is an application that provides a graphical way to derive various models from empirical and simulation data.


Platforms: *nix

Calc is arbitrary precision C-like arithmetic system that is a calculator, an algorithm prototyper and mathematical research tool. Calc comes with a rich set of builtin mathematical and programmatic functions.


Platforms: *nix

swIMP (SWIG-based Interfaces for Mathematical Programming) aims at making solvers written in C or C++ available for other languages. The current focus is on Java as target language and on LP/IP-solvers which are compatible to the Open Solver Interface (OSI) from the Coin-OR-project. This includes...


Platforms: *nix

Provides audit trails for django models with the least amount of code on the developer's part. Useful for keeping track of who changed what model instance, the type of change that was made and when it was made. SHA1 Checksum: 14855cf2dc3542d2229300079ce6c91a4af44777


Platforms: *nix

This module validates input data against an XML document containing one or more XForms models. It is able to process all serializations except multipart/related, relying on pre-parsed data for multipart/form-data or application/x-www-form-urlencoded. Usage is rather simple: Supply input data...


Platforms: *nix