This page links to the zipped archive of Eos3.3 version (current revision, as of September 30, 2020).


  • The copyright of this archive belongs to T. Ida and H. Takahashi.
  • The redistribution of this archive is strictly forbidden.
  • Since this is research software, we shall not be held responsible for any damage that may cause the users.

To install Eos3.3, please read the supplement page of this website .

You will find Orikoto program examples in the origami geometry and the simple origami artworks under the tab “Origami works”. Note that they have to be unzipped to obtain nb files. “Origami works” will be published to the readers of “mono-reader” class when we obtain their DOIs.