01609cam a22003133u 450000100060000000300070000600500170001300600020003000700050003200800410003704000110007804100170008905000070010610000120011324500170012524600220014226400510016430000470021533600260026233700260028833800360031450000820035050000310043252006790046353400450114265300480118785600430123599900170127812408UtSlPG20260610133309.0mcr n260607r2004||||utu|||||o|||||||||||||| d  aUtSlPG 7azh2iso639-1 4aQA1 aUnknown10a周髀算經1 aZhou bi suan jing 1aSalt Lake City, UT :bProject Gutenberg,c2004  a1 online resource :bmultiple file formats  atextbtxt2rdacontent  acomputerbc2rdamedia  aonline resourcebcr2rdacarrier  aWikipedia page about this book: https://en.wikipedia.org/wiki/Zhoubi_Suanjing  aRelease date is 2004-05-01  a"周髀算經" by Unknown is an ancient Chinese astronomical and mathematical work that received its current form during the Eastern Han dynasty (25–220 AD). This anonymous collection presents 246 problems involving celestial calculations and geometric relationships, claiming origins with the Duke of Zhou's court. The work explores Chinese cosmology's concept of a round heaven over a square earth, analyzes solar movements through gnomon shadows, and presents an early form of the Pythagorean theorem known as the gougu theorem—sparking debate about whether Chinese mathematicians discovered this principle independently. (This is an automatically generated summary.)  nOriginal publication data not identified  aMathematics, Chinese -- Early works to 180040uhttps://www.gutenberg.org/ebooks/12408  c53826d53826