Chinese Mathematics

• Mathematics in China emerged independently by the 11th century BC.
• Qin mathematics created a standard system of weighs.
• In Han mathematics, numbers were developed into a "place value decimal" system and used on a counting board wit a set of counting rods called "chousuan".
• The Suan Shu Shu is an ancient Chinese collection of writings on mathematics approximately 7000 characters in length, written on 190 bamboo strips, recovered from a tomb that appears to have been closed in 186 B.C. 
• Chou pei is the oldest existing Chinese texts containing formal mathematical theories and were produced during Han period. It presents the oldest known proof of the "right-angle theory".