Source: Baidu Encyclopedia (Liu Hong)
Liu Hong (Year 130~210) was an ancient Chinese Mathematician who studied astronomy and mathematics. He was the inventor of the art of abacus arithmetic, and hence was given the title of “Sage of Arithmetic”.
Recently, I was fortunate to visit a statue of Liu Hong at his birthplace (modern day Linyi).
(Me beside statue of Liu Hong at Linyi People’s Square, Shandong)
This book will teach you step-by-step how to perform addition, subtraction, division, multiplication, square roots and cube roots on a Chinese abacus. It also explains the ancient ‘extra bead’ method and the ‘suspended bead’ method. Great for both children and adults. Clearly explained with text and pictures throughout every stage of your calculation.