Reckoning by the Abacus, 珠算 zhū suàn

Reckoning by the abacus is a method of numerical calculation using the abacus as a tool.

After the Ming Dynasty, Chinese abacus was successively spread to Japan, Korea and Southeast Asian countries. In recent years, it has gradually become popular in America. After entering the information age, the abacus began to decline, and its computing function has been undertaken by the electronic computer.

Reckoning by the abacus is a major invention in China and occupies an important place in the history of human science and technology. As a traditional folk knowledge and unique practice, abacus still has its historical and cultural value, which needs to be rescued and protected.

Reckoning by the abacus began in the Han Dynasty, became mature in the Song Dynasty, and flourished in the Yuan and Ming Dynasties. Since the Qing Dynasty, it has been widely spread throughout the country. At least from the Song Dynasty, the abacus gradually replaced other calculation techniques and became a unique calculation tool in China. Up to the Ming Dynasty, the abacus took the lead in the field of calculation, and its use methods improved and improved, which promoted the development and progress of China's social economy and science and technology.