NEWS: September 2, 2025
Eos3.9.1, a preliminary version, has been released. It corrected problems in 3D visualization in certain origami examples, when Eos runs in Mathematica 14.3.
NEWS: August 20, 2025
Eos3.9.0 has been released on August 20, 2025 (the link was corrected). It has been tested on macOS and Windows 11 with Mathematica 14.3. For changes from the previous version 3.8.2, read the Supplement for 3.9.0 available under the Supplement tab.
NEWS: February 2025 (2)
Eos3.8.2 has been released on February 18, 2025. It is a minor revision over Eos3.8.1 to cope with the new release of Mathematica 14.2.0.
NEWS: February 2025 (1)
- Mathematica 14.2, Japanese edition, was released on February 5, 2025. Due to the new implementation of TypeOf of Mathematica 14.2, Eos.wl cannot be loaded. We have identified the code of Eos 3.8.1 that cause the error. We plan to release a new edition 3.8.2 that runs on Mathematica 14.2 in a few days. Please use Mathematica 14.1 to run Eos 3.8.1.
NEWS: December 2024
- Eos3.8.1was released on December 18, 2024. See the supplements for 3.8.1.
NEWS: October 2024
Eos3.8.0 was released on October 13, 2024. See the supplements for 3.8.0.NEWS: September 2024
- A big wing crane was presented at SCSS (Symbolic Computation in Software Science) 2024, Tokyo, on August 30.
E-Origami System Eos
Origami, the art of paper folding, has attracted people’s minds for its beauty and utility in everyday life. Origami has also been the scope of mathematical studies. The folding operations are simple, and easily realized by hand, but powerful enough to solve cubic equations. Origami is regarded as a powerful geometrical tool that allows constructions that classical Euclidean tools could not make.
The computational origami system Eos is designed to study the mathematical aspects of paper folds. It includes capabilities of modeling fold operations by algebraic and symbolic methods, computer simulation of origami construction, and proof of the correctness of the constructed origami. Eos is developed by members of Symbolic Computation Research Group (SCORE), department of computer science of the University of Tsukuba.
- Eos3.32 was released on March 23, 2021. It runs on Mathematica 12.2.
- Eos3.4 was released on May 6, 2021. It runs on Mathematica 12.2.
- Eos3.5 was released on January 20, 2022. It runs on Mathematica 13.
- Eos3.6 was released on July 19, 2022. It runs on Mathematica 13.
- Eos3.7 was released on December 16, 2022. It runs on Mathematica 13.1.
- Eos3.7.1 which was released on March 17, 2023.
- Eos.3.7.2 was released on June 16, 2023:
- Eos.3.7.3 was released on October 2, 2023:
- Eos.3.7.5 was released on June 27, 2024
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