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DAE Tools Project

Object-oriented equation-based modelling and optimization software

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DAE Tools is a free/open-source cross-platform object-oriented and equation-based process modelling and optimization software. It is not a modelling language, rather a collection of software packages with the API for:
- Model development
- Simulation, optimization, and parameter estimation
- Processing of the results
- Report generation
- Code generation

DAE Tools modelling approach is a hybrid approach between general-purpose programming languages (such as c++ and Python) and domain-specific modelling languages (such as Modelica, gPROMS, Ascend).

DAE Tools runs on all major operating systems (Windows, GNU Linux and Mac OS X) and architectures (x86, x86_64, arm).

It is free to use, released under the GNU General Public Licence.

Class of problems that can be solved:
- Initial value problems of implicit form
- Index-1 DAE systems
- With lumped or distributed parameters
- Steady-state or dynamic
- Continuous with some elements of event-driven system

DAE Tools Project Web Site


  • Cross-platform (x86, x86_64, arm)
  • Support for simulation and optimization of dynamic and steady-state processes
  • Support for lumped and distributed processes
  • Support for sequential and multithreaded LA solvers
  • Support for dense and sparse matrixes
  • Support for 2D and 3D plots using Matplotlib and Mayavi2


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Additional Project Details



Intended Audience

Information Technology, Science/Research, Manufacturing, Advanced End Users, Developers, Engineering

User Interface

Gnome, X Window System (X11), Win32 (MS Windows), KDE, Qt

Programming Language

Python, C++



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