Chinese mathematics
Videos
Mathematics emerged independently in China by the 11th century BCE. The Chinese independently developed a real number system that includes significantly large and negative numbers, more than one numer
Visual proof for the (3, 4, 5) triangle as in the Zhoubi Suanjing 500–200 BCE
Liu Hui's Survey of sea island
Statue of Zu Chongzhi.
Li Ye's inscribed circle in triangle:Diagram of a round town
Rod calculus
Videos
Rod calculus or rod calculation was the mechanical method of algorithmic computation with counting rods in China from the Warring States to Ming dynasty before the counting rods were increasingly repl
Japanese counting board with grids
Rod calculus facsimile from the Yongle encyclopedia
Representation of the number 231 and possible misleading rod placements.
Tian yuan shu in Li Zhi:Yigu yanduan