# Openmodelica

> free and open source environment based on the Modelica modeling language for modeling

**Wikidata**: [Q24027074](https://www.wikidata.org/wiki/Q24027074)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/OpenModelica)  
**Source**: https://4ort.xyz/entity/openmodelica

## Summary
OpenModelica is a free and open-source modeling environment based on the Modelica programming language, designed for creating mathematical models of complex physical systems. It is particularly useful for simulating dynamic systems in fields like engineering, physics, and biology.

## Key Facts
- **Based on Modelica**: OpenModelica is built upon the Modelica modeling language, which was first developed in 1997.
- **Open-source**: The project is freely available under an open-source license, with its source code hosted on GitHub.
- **Latest stable version**: Version 1.16.5 was released on February 25, 2021.
- **File formats**: Supports reading and writing Modelica model files and CombiTimeTable formats.
- **Programming paradigm**: Uses declarative programming, focusing on describing what the system should do rather than how to achieve it.
- **Website**: Official site is [openmodelica.org](http://www.openmodelica.org).
- **Source repository**: Code is available at [GitHub/OpenModelica](https://github.com/OpenModelica/OpenModelica).

## FAQs
### Q: What is OpenModelica used for?
A: OpenModelica is primarily used for modeling and simulating dynamic systems, such as mechanical, electrical, and thermodynamic systems, in engineering and scientific research.

### Q: Is OpenModelica free to use?
A: Yes, OpenModelica is free and open-source, allowing users to download, modify, and distribute the software without restrictions.

### Q: What programming language does OpenModelica use?
A: OpenModelica is based on the Modelica language, a declarative programming language designed for modeling physical systems.

### Q: Where can I download OpenModelica?
A: The latest versions of OpenModelica can be downloaded from the official website or its GitHub repository.

### Q: Can OpenModelica integrate with other software?
A: Yes, OpenModelica supports integration with other tools and platforms through its open architecture and compatibility with Modelica models.

## Why It Matters
OpenModelica plays a crucial role in the field of systems modeling by providing a powerful, open-source tool for simulating complex physical systems. Its declarative approach allows engineers and researchers to focus on defining system behavior rather than implementation details, making it particularly valuable for rapid prototyping and analysis. By being open-source, it fosters collaboration and innovation, enabling users to customize and extend its functionality. This makes OpenModelica an essential tool for academic research, industrial applications, and educational purposes, particularly in domains where accurate modeling of dynamic systems is critical.

## Notable For
- **Open-source foundation**: OpenModelica is one of the few fully open-source implementations of the Modelica standard, making it accessible to a wide range of users.
- **Cross-platform compatibility**: Supports multiple operating systems, including Windows, Linux, and macOS.
- **Active development**: Regular updates and releases ensure compatibility with the latest Modelica features and improvements.
- **Community-driven**: Backed by a global community of developers and users who contribute to its development and documentation.
- **Industry adoption**: Used in various industries, including automotive, aerospace, and energy, for simulating and optimizing complex systems.

## Body
### Overview
OpenModelica is a free and open-source modeling environment based on the Modelica programming language. It was developed to provide a robust tool for creating mathematical models of dynamic systems, particularly in engineering and scientific research.

### Development and History
- **Inception**: The Modelica language, on which OpenModelica is based, was first introduced in 1997.
- **Open-source initiative**: OpenModelica was created to offer a freely available alternative to proprietary modeling tools.
- **GitHub repository**: The project's source code is hosted on GitHub, facilitating community contributions and collaboration.

### Technical Specifications
- **Programming paradigm**: OpenModelica uses declarative programming, emphasizing the description of system behavior rather than step-by-step instructions.
- **File formats**: Supports Modelica model files and CombiTimeTable formats for data exchange.
- **Latest version**: Version 1.16.5 was released on February 25, 2021, with ongoing updates to improve functionality and performance.

### Applications
- **Engineering**: Used for simulating mechanical, electrical, and thermodynamic systems.
- **Research**: Supports academic and industrial research in dynamic system modeling.
- **Education**: Provides a cost-effective tool for teaching modeling and simulation concepts.

### Community and Support
- **Open-source community**: Backed by a global community of developers and users who contribute to its development and documentation.
- **Official website**: [openmodelica.org](http://www.openmodelica.org) serves as the primary resource for users, including documentation and support.
- **GitHub contributions**: Users can contribute to the project by submitting code, reporting issues, or suggesting improvements.

### Impact
- **Accessibility**: Its open-source nature makes it accessible to a wide range of users, from students to industry professionals.
- **Customization**: Users can modify and extend the software to meet specific needs, enhancing its versatility.
- **Collaboration**: The project benefits from collaborative efforts, leading to continuous improvements and innovations.

## References

1. [Release 1.9.3. 2015](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.9.3)
2. [Release 1.9.4. 2016](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.9.4)
3. [Release 1.9.5. 2016](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.9.5)
4. [Release 1.14.0. 2023](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.14.0)
5. [Release 1.14.2. 2020](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.14.2)
6. [Release 1.16.0. 2020](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.16.0)
7. [Release 1.16.1. 2020](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.16.1)
8. [Release 1.16.2. 2021](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.16.2)
9. [Release 1.16.4. 2021](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.16.4)
10. [Release 1.16.5. 2021](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.16.5)
11. [Release 1.17.0. 2021](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.17.0)
12. [Release 1.18.0. 2021](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.18.0)
13. [Release 1.19.0. 2022](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.19.0)
14. [Release 1.19.2. 2022](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.19.2)
15. [Release 1.20.0. 2023](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.20.0)
16. [Release 1.21.0. 2023](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.21.0)
17. [Release 1.22.0. 2023](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.22.0)
18. [Release 1.22.1. 2023](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.22.1)
19. [Release 1.22.2. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.22.2)
20. [Release 1.22.3. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.22.3)
21. [Release 1.23.0. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.23.0)
22. [Release 1.23.1. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.23.1)
23. [Release 1.24.0. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.24.0)
24. [Release 1.24.2. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.24.2)
25. [Release 1.24.3. 2024](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.24.3)
26. [Release 1.24.4. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.24.4)
27. [Release 1.24.5. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.24.5)
28. [Release 1.25.0. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.0)
29. [Release 1.25.1. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.1)
30. [Release 1.25.2. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.2)
31. [Release 1.25.3. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.3)
32. [Release 1.25.4. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.4)
33. [Release 1.25.5. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.5)
34. [Release 1.25.6. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.6)
35. [Release 1.25.7. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.25.7)
36. [Release 1.26.0. 2025](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.26.0)
37. [Release 1.26.1. 2026](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.26.1)
38. [Release 1.26.2. 2026](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.26.2)
39. [Release 1.26.3. 2026](https://github.com/OpenModelica/OpenModelica/releases/tag/v1.26.3)