DescriptionYanghui magic circle 2.jpg English: Yang Hui magic circle 中文（简体）：杨辉算法 连环图 Date 13th century date QS:P,+1250-00-00T00:00:00Z/7 Source mybook...
DescriptionYanghui magic circle 2 - Arabic numerals.png Nederlands: Gebaseerd op File:Yanghui magic circle 2.jpg English: Based on File:Yanghui magic circle 2.jpg...
https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Magic circles devised by Yang Hui...
