Terms of use
  1. Designs, logos, text, algorithms and/or graphics of the website are the property of Jordi Sorolla, except fonts in TeX format, served by Mathjax, the base code of the abacus and the code of the games.

  2. Any person accessing this website assumes the role of user, and undertakes to the observation and strict compliance with the provisions stated herein and any other provision that could be applicable.

  3. The author reserves the right to modify any information that could appear in the website without notice, meaning enough publishing it in the site web.

  4. The author disclaims any liability for the information posted on its website, provided that this information has been manipulated or introduced by a third party.

  5. From the website, one may be redirected to the content of third party websites. Since the contents posted by third parties on their websites can not be always controled, no responsibilities for such contents will be assumed.

  6. This site has been designed and optimized for Firefox and Chromium. At first, correct operation 365 days a year, 24 hours a day can be ensured. However, the author is not liable for any bugs or computer failures.

  7. The user is authorized to use the self-learning tools, provided it is not for profit porpuses.