Encyclopedia of India–China Cultural Contacts v1.c6.s1.t3.5

v1.c6.s1.t3.5

The *Summary of Mathematics* was written by Xuyue in Han dynasty and is noted by Zhen Luan. Qian Baocong thought that the book was both written and noted by Zhen Luan and its authorship is inadvertently attributed to Xuyue but some other scholars believe that it was truly authored by Xuyue and noted by Zhen Luan. The writer narrates in first person that he met Liuhong when travelled to Mountain Tai and Liuhong told him that he had learned three kinds of scale system and 14 kinds of noting numbers from Tianmu whom he encountered in mountains.