Inner angle of triangle on unit circle made of consecutive three points generated by chaotic map

Ryo Takahashi, Etsushi Nameda, Ken Umeno. Inner angle of triangle on unit circle made of consecutive three points generated by chaotic map. JSIAM Lett., 2:9-12, 2010. [doi]

@article{TakahashiNU10,
  title = {Inner angle of triangle on unit circle made of consecutive three points generated by chaotic map},
  author = {Ryo Takahashi and Etsushi Nameda and Ken Umeno},
  year = {2010},
  doi = {10.14495/jsiaml.2.9},
  url = {https://doi.org/10.14495/jsiaml.2.9},
  researchr = {https://researchr.org/publication/TakahashiNU10},
  cites = {0},
  citedby = {0},
  journal = {JSIAM Lett.},
  volume = {2},
  pages = {9-12},
}