Free Differential Equations Software

20sim Viewer by Controllab Products BV

20-sim is an advanced modeling and simulation package for Windows. With 20-sim you can simulate the behavior of dynamic systems, such as electrical, mechanical and hydraulic systems or any combination of these. 20-sim models may use iconic diagrams, bond graphs, block diagrams as well as differential equations. Used in mechatronics, control engineering, robotics, mechanical engineering, hydraulics etc. From the same lab as Tutsim.

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ODEcalc by Optimal Designs Enterprise

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 Nth order ODE. ODE may be non-linear, implicit, and any order. Source code included ... it''s short! Great teaching tool! A Fortran Calculus demo appl.

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Numerical Plotter by Abecedarical Systems

This source code enables you to plot the solutions to scientific and engineering problems. The Visual C++ programming environment was chosen for realization of numerical computation techniques. Visual C++ includes many advanced features that make it especially suitable for scientific and engineering computations. Visual C++ is also widely used; there is a wealth of information available on how to program with it.

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OpenDDPT by Centi Riccardo

OpenDiscreteDynamicProgrammingTemplate : founds optimal constrainted parameters of a discrete controls with second order optimization template replacing Hessian with directional derivatives and backpropagation for digital filter(as neural network)

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RF21 by Christoph Hohmann

Graphing scientific calculator allowing for permanent installation of a user's own commented functions and libraries. It's also an archive capable of holding a lifetime's mathematical work. Integrated searchable database. Numeric features include derivation, integration, Monte Carlo simulations, Runge Kutta, matrix inversion, nonlinear equation systems, function minimizer. Prints plots and exports them to the -.GIF file format.

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