For example, Cheng Dawei (1533- 1606) advocated the addition of the previous method, the subtraction of the latter method, the multiplication and division of the left head, and the positioning method on the disk. The central idea of standard bead algorithm in Ming Dynasty is to improve the degree of mechanization, so as to achieve the goal of mindless automation.
The direct result of perfecting the abacus mechanization algorithm in the Ming Dynasty was to make mathematics unprecedentedly popular among the public. Use the abacus calculation mechanization algorithm, recite songs, practice pearl picking, and master the abacus calculation algorithm even if you don't understand the principle. Regardless of public schools, private schools, tutors, merchants and shopkeepers, bead algorithm can be taught, and even children can learn to master it.
This bead algorithm continued until 1950s, and even today in some places. It is also for this reason that abacus spread quickly and even spread overseas.
Zhu Zaiyu (1536-1611year) used abacus in scientific research, created the method of using abacus in series (or in parallel), and designed an extremely simple algorithm program. In his scientific discovery, invention and creation, he used abacus to complete extremely complicated calculations, thus discovering the "law of twelve averages", which is the top discovery in the world.
In the past, abacus calculation generally only stayed in practical methods and manual abacus calculation, failing to understand and explain its far-reaching significance and irreplaceable value from the basis or "gene".
Therefore, when introducing the western mathematics teaching system, it is not used to replace the corresponding backward part of the western mathematics curriculum, but to exclude it from the mathematics curriculum. As a result, mathematics in schools and middle schools can't meet the actual needs, so we have to open another abacus course besides mathematics class.
China's first artificial satellite was successfully launched by abacus.
The origin of abacus
The origin of abacus can be traced back to 600 BC. It is said that there was a computing board in China at that time. The ancients strung 10 abacus beads into a group, arranged them in groups, put them in boxes, and then quickly set aside the abacus beads for calculation.
At the end of the Eastern Han Dynasty, Xu Yue recorded in "Numerology Legacy" that when his teacher Liu Hong visited the hermit Mr. Tianmu, Mr. Tianmu explained 14 calculation methods, one of which was abacus, and the calculation tools used were very close to modern abacus. Each abacus has five active beads, the upper 1 is equivalent to 5, and the lower four are regarded as 1 respectively.