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Nonlinear Equations Matlab freeware
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Nonlinear Equations Matlab

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LMFsolve.m: Levenberg-Marquardt-Fletcher algorithm for nonlinear least squares problems The function LMFsolve.m serves for finding optimal solution of an overdetermined system of nonlinear equations in the least-squares sense. The standard Levenberg- Marquardt algorithm was modified by Fletcher and coded in FORTRAN many years ago. LMFsolve is its essentially shortened version...



Platforms: Matlab


Nonlinear least square optimization through parameter estimation using the Unscented Kalman Filter The Kalman filter can be interpreted as a feedback approach to minimize the least equare error. It can be applied to solve a nonlinear least square optimization problem. This function provides a way using the unscented Kalman filter to solve nonlinear least square optimization problems. Three...





Platforms: Matlab


Added: August 23, 2013 | Visits: 275

LMFnlsq - Solution of nonlinear least squares The function The LMFnlsq.m serves for finding optimal solution of an overdetermined system of nonlinear equations in the least-squares sense. The standard Levenberg- Marquardt algorithm was modified by Fletcher and coded in FORTRAN many years ago (see the Reference). This version of LMFnlsq is...


Platforms: Matlab

License: Freeware Size: 870.4 KB Download (21): LMFnlsq - Solution of nonlinear least squares Download

Added: February 18, 2010 | Visits: 1.136

Octave GNU Octave project is a high-level language, primarily intended for numerical computations. It provides a convenient command line interface for solving linear and nonlinear problems numerically, and for performing other numerical experiments using a language that is mostly compatible with Matlab....


Platforms: *nix

License: Freeware Size: 8.1 MB Download (122): Octave Download

Added: May 13, 2013 | Visits: 309

Hybrid Particle Swarm Optimization This upload contains a hybrid Particle Swarm Optimization algorithm for functions in the real space. An options file is also provided, which lets the user fully parameterize the process. The hybrid function used is the @fminsearch, which is available on the MATLAB core. The PSO performs very well...


Platforms: Matlab

License: Freeware Size: 10 KB Download (25): Hybrid Particle Swarm Optimization Download

Unconstrained Optimization using the Extended Kalman Filter The Kalman filter is actually a feedback approach to minimize the estimation error in terms of sum of square. This approach can be applied to general nonlinear optimization. This function shows a way using the extended Kalman filter to solve some unconstrained nonlinear optimization problems. Two...


Platforms: Matlab

License: Freeware Size: 10 KB Download (19): Unconstrained Optimization using the Extended Kalman Filter Download

Added: May 12, 2010 | Visits: 676

ASCEND ASCEND is a flexible modelling environment for solving hard engineering and science problems. It offers: - an object-oriented model description language for describing your system, - an interactive user interface that allows you to solve your model and explore the effect of changing the model...


Platforms: *nix

License: Freeware Size: 2.9 MB Download (87): ASCEND Download

Released: November 26, 2012  |  Added: November 26, 2012 | Visits: 291

BestCurFit BestCurFit calculates the parameters of 12 curves using the method of Linear Least Squares, fitting each curve to user data. The nonlinear equations are linearized. The obtained parameters are used for following optimization procedure using Simplex and Gauss-Newton algorithm. If it does not...


Platforms: Windows

License: Freeware Size: 1.81 MB Download (34): BestCurFit Download

Released: September 30, 2013  |  Added: September 30, 2013 | Visits: 130

QED Solver for iPhone (FREE) **QED Solver Calculations have never been this fast or easy!** Have an iPad? Check out QED Solver for iPad! This is the ad-supported version of QED Solver. QED is a powerful calculation tool for science and engineering problems, as well as general math problems. Calculations have never been...


Platforms: iOS

License: Freeware Size: 8.1 MB Download (9): QED Solver for iPhone (FREE) Download

Released: September 30, 2013  |  Added: September 30, 2013 | Visits: 154

QED Solver (FREE) **QED Solver Calculations have never been this fast or easy!** ? This is the ad-supported version of QED Solver. QED Solver is a powerful calculation tool for science and engineering problems, as well as general math problems. Calculations have never been so easy - just enter your problem and...


Platforms: iOS

License: Freeware Size: 7.4 MB Download (10): QED Solver (FREE) Download

Added: May 11, 2013 | Visits: 299

Pattern formation and KPP equation This 15-line matlab program solves the nonlinear reactiondiffusion equation, called Kolmogorov-Petrovskii-Piskunov(KPP) equation to generate patterns (ribbons and rings).The numerical method is simple and program is easy tounderstand, and it can be extended to simulatedmore complex systems. The...


Platforms: Matlab

License: Freeware Size: 10 KB Download (30): Pattern formation and KPP equation Download

Added: April 19, 2013 | Visits: 306

Nonlinear F-16 Fighter Model This ZIP file contains the nonlinear model of anF-16 fighter aircraft in MATLAB/Simulink, Both high-fidelity and low-fidelity aerodynamic data are available, taken from NASA report 1538 and "Aircraft Control and Simulation" by Lewis & Stevens.A trim function is also included.F16dyn.c and...


Platforms: Matlab

License: Freeware Size: 768 KB Download (34): Nonlinear F-16 Fighter Model Download

Added: June 27, 2013 | Visits: 283

MATLAB interface for L-BFGS-B L-BFGS-B is a collection of Fortran 77 routines for solving nonlinear optimization problems with bound constraints on the variables. One of the key features of the nonlinear solver is that the Hessian is not needed. I've designed an interface to the L-BFGS-B solver so that it can be called like...


Platforms: Matlab

License: Freeware Size: 61.44 KB Download (20): MATLAB interface for L-BFGS-B Download

Graphical ODE solver for one or two ordinary differential equations 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


Added: March 28, 2013 | Visits: 273

Single tank linearization Single tank system nonlinear model was develop & finding the operating point of it using script file of the matlab with solving of ode for it and ploting the response


Platforms: Matlab

License: Freeware Size: 10 KB Download (18): Single tank linearization Download

Added: April 29, 2013 | Visits: 222

LYAPACK LYAPACK is a MATLAB toolbox for the solution of certain large scale problems in control theory, which are closely related to Lyapunov equations. In contrast to the 'lyap' and 'dlyap' command in the MATLAB Control toolbox it uses iterative algorithms and is intended for large, sparse problems.


Platforms: Matlab

License: Freeware Size: 1.02 MB Download (18): LYAPACK Download

Data based modeling of nonlinear dynamic systems using System Identification Toolbox 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


Added: March 25, 2013 | Visits: 204

Eckart Inertias This is a suite of MATLAB codes to calculate effective Eckart inertias for large amplitude torsions published by Bryan M. Wong, Ryan L. Thom, and Robert W. Field in The Journal of Physical Chemistry A 110, 7406 - 7413 (2006). The Eckart inertias are obtained by solving a system of transcendental...


Platforms: Matlab

License: Freeware Size: 276.48 KB Download (18): Eckart Inertias Download

Released: July 08, 2012  |  Added: July 08, 2012 | Visits: 353

APMonitor Modeling Language 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 (28): APMonitor Modeling Language Download

Released: September 14, 2012  |  Added: September 14, 2012 | Visits: 248

Biopsychology Nonlinear Toolbox The Biopsychology Nonlinear Toolbox is a MATLAB toolbox that combines established analysis routines in one easy to use graphical user interface.


Platforms: Windows, Mac, Linux

License: Freeware Size: 17.01 MB Download (27): Biopsychology Nonlinear Toolbox Download

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