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Freeware: Implicit Differential Equations

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20sim Viewer 3.6.11
20sim Viewer 3.6.11
An advanced modeling and simulation program for dynamic systems from the same lab as Tutsim. Easy-to-use and powerfull package for mechatronics, robotics, control engineering, mechanics, hydraulics, etc. From the same lab as Tutsim.
Chaoscope 0.3.1
Chaoscope 0.3.1
Renders 3D strange attractors - 5 rendering modes (including raytracing with shadows and specular highlights) and 15 equations available (Julia, IFS...). Preview of the attractor which changes in real-time when you drag the parameters sliders.
RF21 0.91
RF21 0.91
Graphing scientific calculator with ample support for user defined functions and libraries. Numeric features include derivation, integration, Monte Carlo simulations, Runge Kutta, matrix inversion, nonlinear equation systems, function minimizer.
Task Light 3.0
Task Light 3.0
Test authoring mathematics freeware with 500+ solutions in arithmetic, pre-algebra, algebra, trigonometry and hyperbolic trigonometry. Easy preparation of math tests and their variants