What are the Arabic numerals in the Gregorian calendar?

This is an Arabic numeral representing the Gregorian calendar. It consists of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 * * * 10 counting symbols.

Arabic numerals consist of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 * * * 10 counting symbols. Arabic numerals were first invented by ancient Indians, then spread to Europe by Arabs, and then modernized by Europeans. People think they are the inventions of Arabs, so people call them "Arabic numerals".

Gregorian calendar refers to the A.D., that is, the Gregorian era, originally called the Christian era, also known as Gregorian calendar or Gregorian calendar, a method of chronology that originated in western society. 1949 On September 27th, the first plenary session of China People's Political Consultative Conference passed that the newly established People's Republic of China (PRC) adopted the Gregorian calendar and the Gregorian calendar year commonly used by most countries in the international community. However, the lunar calendar has not been abolished. Today, traditional festivals in China are based on the lunar calendar.

The century, year, year, month and day of the Gregorian calendar need Arabic numerals.

Extended data

The general principle of using Arabic numerals in sci-tech books and periodicals is that Arabic numerals should be used wherever they can be used, as long as they are suitable.

The main use occasions are:

(1) physical quantity. Physical quantities must use Arabic numerals, and the units of measurement after the numerals must use legal units of measurement in China, such as 3kg, 45m, 2min, etc.

(2) century, year, year, month, day and time. Such as: 1990s, 2005, 65438+February, 12, 16, 15, etc.

(3) The number before the counting unit. Numbers greater than 10 before the counting unit must use Arabic numerals, the integer 1~ 10, and Arabic numerals should be used where appropriate. Such as: 12 pencil, 4 tubes, 1 flower, etc.

(4) the number of counts. Whether it is a chart or a narrative, the counted figures must be Arabic numerals, including integers, decimals, percentages, proportions, etc.

(5) Model, serial number, serial number, code, etc. Instrument model, sample number, standard number, etc. Often appear in scientific papers, Arabic numerals should be used, and the word "first" is often used before ordinal numbers. Such as: ML 1332 detector, GB 18745, 8 groups, etc.

Baidu Encyclopedia-Arabic numerals

Baidu encyclopedia-Gregorian calendar

Baidu Encyclopedia-Digital Use of National Standard Publications in People's Republic of China (PRC)