What do you mean, raise money?

Calculation refers to a calculation tool used in ancient China. It is an algorithm card composed of several pieces of bamboo or wood chips, with numbers and symbols engraved on it. These symbols and numbers can be combined into various arithmetic formulas to help the ancients carry out mathematical calculations. Calculation is an essential tool for ancient civil servants and businessmen to calculate taxes, profits and freight. In addition to commercial use, the calculation is also used in astronomy, geography, military and other fields.

The range of things calculated is wide and flexible enough. They can easily exchange and recombine different values and change their order and scheme, so that people can carry out complex calculations to achieve higher precision results. In ancient times, the main purpose of using calculation in exams was to test students' computing ability and time management ability, so it became an essential tool for holding imperial examinations at that time.

Although the popularity of modern computing tools has gradually faded out of people's sight, some people still regard it as a traditional cultural heritage. Today, many people think that computing is not only a unique computing tool, but also has profound philosophical thinking and cultural background on the basis of its unique aesthetics. Modern people call it "the crystallization of ancient wisdom", which is collected in museums and treasure houses as a precious cultural relic.