The radix of decimal number is R= 10, * * has ten digits from 0 to 9, and the carry rule is every decimal number, and the weight of each digit is the power of 10.
In the same way, binary is one every two.
Extended data
The origin of decimal system:
Decimalization is a great invention of China, which is indispensable in people's daily life. At the latest in Shang Dynasty, China had adopted the decimal system. It can be seen from the Wen Tao and Oracle Bone Inscriptions in Shang Dynasty that we were able to record any natural number within 100,000 with thirteen numbers, such as one, two, three, four, five, six, seven, eight, nine, ten, hundred, thousand and ten thousand.
Although the shapes of these numbers have changed in later generations and become the current writing methods, the notation has never been interrupted and has been used and improved day by day. Decimal notation is the most advanced and scientific notation in the ancient world, which plays an inestimable role in the development of world science and culture. As Joseph Needham said, "Without this decimal system, it is impossible to have our unified world now."
A batch of pottery was unearthed in F90 1 room in the late Yangshao period in Dadiwan, mainly including four pieces of clay trough-shaped strips, long-handled twist ear shovel with fine sand, clay single-ring ear dustpan and mud-covered deep-bellied pot. The volume of the strip disk is about 264.3 cubic centimeters; The natural texture volume of shovel paper is about 2650.7 cubic centimeters.
The natural texture volume of basket paper is about 5288.4 cubic centimeters; The volume of the four deep belly tanks is about 26082.438+0 cubic centimeters. It can be seen that, except that the dustpan copy is twice as much as the shovel copy, the relationship between the other three pieces is ten times increasing. The discovery of these weights and measures also provides very valuable physical data for studying the origin of China's ancient decimal system.