Where do the numbers 8 and 9 come from? Which is better number 8 or number 9?

The Arabic numbers 8 and 9 were gradually created by the ancient Indians in production and practice:

In ancient India, it was necessary to design and plan the construction of cities, and to calculate the movement of the sun, moon and stars for rituals, so mathematical calculations were born. Around 3000 B.C., the numbers of Indus Valley dwellers were more advanced and decimal was used.

By the third century B.C., a whole set of numbers had appeared in India, but they were not written in exactly the same way in different regions, the most representative of which was Brahman: this set of numbers was more commonly used at the time. It is characterized by the fact that from "1" to "9", each number has a special word.

Modern numbers evolved from this set of numbers. In this set of numbers, the symbol of "0" (zero) does not appear yet.

In 1202, Italy published an important mathematical book, the Book of Calculations, which made extensive use of Indian numerals, improved by the Arabs, and which marked the beginning of the use of new numerals in Europe. The book is divided into fifteen chapters. At the beginning of the first chapter it is written:

The nine Indian numerals are ', and any number can be represented by these nine numbers and the '0' notation that the Arabs call 'zero'. ”

0-100 has 20 8s.

There are 20 8s. Spring Oak We divide the number of 100 into groups of 10, for a total of 10 groups. 1-70 There are 7 8s in these seven groups, that is, there is one in each group; There are two 8's in the group of 71-80, 78 and 80; There are 10 8's in the group of 81-90, and it is easy to make a mistake when there are two 8's in "88"; There is 1 8 in 91-100, for a total of 20 8s.

Digital History: Around 700 years ago, the Arabs conquered the Punjab region and were surprised to find that the conquered regions were more advanced in mathematics than they were.

Later, the Arabs introduced this figure to Spain. In the 10th century, it was spread to the rest of Europe by Pope Gerbert Auriac. Around 500 AD, with the rise and development of economy, culture and Buddhism, mathematics in the Punjab region in the northwest of India's second largest land has been in the leading position, originating in India.

Around 1200 AD, European scholars formally adopted these symbols and systems. By the 13th century, under the initiative of the mathematician Fibonacci of Pisa, Italy, ordinary Europeans also began to adopt Arabic numerals, and by the 15th century this phenomenon was quite common. At that time, the shape of Arabic numerals was not exactly the same as modern Arabic numerals, but they were relatively close, and many mathematicians put a lot of effort into making them the way they are written today.

Arabic numeral; 8 。

Kanji: 八. Traditional; It's a handle, and it's a don't.

The standard way to write Arabic numerals

Each number should be evenly sized and smooth; Each number is independent and tangible, so that people can see it at a glance, and it cannot be written with a pen.

The writing should be arranged in an orderly manner and the font should be written at an angle from the top right to the bottom left (the numbers are usually tilted at 60 degrees from the bottom line).

Each number written should be close to the bottom line, but not on the top of the grid. Generally, each cell number occupies a position of 1 2 or 2 3, and there should be room for correction of the number.

When writing digital accounting, it should be from left to right, and the stroke order should be from top to bottom, first left and then right, to prevent writing inverted strokes.

Half an Arabic numeral space should be left between adjacent numbers of peers, but no space should be reserved (preferably no more digits).

Numbers other than "4" and "5" must be written in one stroke, and the strokes of the numbers cannot be artificially increased.

The word 6 is 1 4 longer than the normal number to the upper right, and the word "7" and "9" are 1 4 to the bottom left (over the bottom line).

For numbers that are easily confused and have similar stroke order, when writing, write according to the standard font as much as possible to distinguish the stroke order and avoid confusion to prevent alteration.

9 is an auspicious number in people's minds, and its "long-lasting" meaning is used in various ways in people's lives to express their expectations for a better future.

There is nothing good or bad in itself ...

Since nine is the largest of the one-digit numbers, it is considered to be an imaginary number and pole number of the most yang in China, and often means the most and countless meanings, such as: Nine Heavens, Nine Heavens, Nine Heavens (describing the sky is very high), Nine Pan (describing the crooked road), Nine Secluded (describing extremely distant and deep places), Nine Cows and One Mao, Nine Deaths and One Life, Nine Nine to One, etc.

In addition, nine is homophonic with the Chinese character jiu, so nine is regarded as a number representing longevity. In some areas, Chinese marriage customs, when the groom wants to go to his spouse's house to marry the bride, he must wrap a red envelope of 9999 yuan (or more 9) to the bride's family and relatives and friends, in order to show long-term meaning, and then can enter the bride's home.

Count the Temple of Heaven in Beijing, there are many things related to 9, such as the Temple of Heaven is inlaid with nine stone slabs to represent the nine heavens, and the steps and guardrails are all related to the nine.

The meaning of 9 has:

1.Everlasting.

2.Nine is the largest of the Arabic numerals, indicating majesty, the most noble 3China's feudal culture has: the Ninth Five-Year Plan is supreme, and the nine represents the supremacy.

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