Sangaku are geometrical problems carved on wooden tablets. They were very popular in Japan during the Edo period (1603-1867).
Sangaku was the theme for the 12-30 project, month of November. I compiled the entire series with additional artworks inspired by the Sangaku tradition in one volume including over 60 illustrations, the original geometry they originated from, along with their mathematical description and possible solution
The book is now available in electronic format on the iBook store, GoogleBook, and Kindle. The individual images, large size print on canvas on SaatchiArt.
The Octaplex, symmetry in four-dimensional geometry and art, is now available on Elsevier-ScienceDirect @http://bit.ly/JCOctaplex
“The Quaste quandary”, vol. nº 8 of the Math-Art series, is now available on the iBook store @http://bit.ly/JCDigitalBooks , GoogleBooks @http://bit.ly/JCGBooks . A black&white version is also available on Kindle @http://bit.ly/JCPublishing
This book, as well as vol. nº 7, “The Mathematical Surfer”, features some of the works I produced at the beginning of the 12-30 project, month of January.
“Boy singular surfaces” – Math Art series, vol. 6, is now available on the AppleStore and on GoogleBooks. A black and white version is also available on Amazon-Kindle.
The electronic version of Math-Art, Vol 1 – Conformal maps – is now available on
The 12-30 project is entering a new phase – moving images!
4 cinemagraphs I selected for a new project next year. I saved that one for this blog:
An “infinite loop” shower of golden snowflakes for all in 2017!
Just in time for the Holidays!
The 12-30 project (rev. 2), now available on Blurb, and Amazon.com
365+10 illustrations, text & references.