Chinese name Jiujiu Table mbth Jiujiu Table is commonly known as Xiao Jiujiu. The multiplication table shows the math table, or C language describes the math that should be used.
catalogue
Introduction to 1 formula
Two historical stories
Story content
Reflect the facts
3 plan implementation
Introduction to formula editing
As an enlightenment textbook, we all recited the multiplication table of 1999: one gets one, one gets two ... 998 1. In ancient times, it started with "998 1", so it was called "99 table". The use of Jiujiu table is very helpful to complete multiplication. The story of Nanxian shows that by the 7th century BC, the 99-year-old Song formula was not uncommon. Some people may think that this kind of achievement is not worth mentioning. But in ancient Egypt, multiplication was done by multiplication. For example. If we calculate 23× 13, we need to multiply 23 by 2 to get 23×2, 23×4 and 23×8, and then note that 13= 1+4+8, then the sum of 23+23×4+23×8 is 23× 68. From the comparison, it is not difficult to see the advantages of using the 99 standard. [ 1]
According to the "99 multiplication table" found by archaeologists on bamboo slips unearthed from the site of the ancient Mindi in Zhangjiajie, Hunan Province, it is strikingly consistent with the multiplication table used in today's life. This bamboo slip with "99 multiplication table" written on it is made of wood, about 22 cm long and badly damaged. Previously, a multiplication formula table dating back more than 2,200 years was also found on the bamboo slips of A Qin unearthed in Liye ancient city, western Hunan, which is the earliest multiplication formula table found in China today. In addition to Liye Qin bamboo slips, the "99 multiplication table" which is basically the same as the bamboo slips found at the site of the ancient Mindi in Zhangjiajie is also found in Loulan literature. It is a multiplication table of 99 written on two pieces of waste paper, which was excavated by Swedish explorer Sven Hedin at the beginning of last century. The multiplication table was not unique to China in ancient times, but also found on the ancient Babylonian clay tablets. But the monosyllabic pronunciation of Chinese characters (including numbers) is catchy to read; The abacus formula developed later also inherited this feature, which played a certain role in improving the operation speed and algorithm. [ 1]
The 99 standard is a single digit multiplication formula. Because it started with "998 1" in ancient times, it was named Jiujiubiao. There are many fragments of ninety-nine formulas in the pre-Qin classics such as Guanzi, among which there is a story that Qi Huangong set up a court, regarded ninety-nine as a "thin talent" and accepted talents. There are many bamboo slips unearthed in 1950s and 1960s, but they are not complete. [2] Jiujiu Watch is also called "Pythagoras Watch" in the West. [3]
The wooden slips of Jiujiu Table are the earliest and most complete multiplication formula table found in China so far, and the earliest Jiujiu multiplication table in the world [4].
Historical story editor
Story content
Jiujiu Biao was called Jiujiu Pavilion in ancient China. There is a story: According to legend, during the Spring and Autumn Period, Qi Huangong once set up a hall to recruit talents from all over the world. But after waiting for a long time, no one came to apply. After more than a year. A man has just arrived. He dedicated 99 Songs to Qi Huangong as a gift to show his talents. Qi Huangong thought this man was ridiculous, so he said to this man, "Can you also show your talent with 99 songs?" [5]
The bearer replied politely, "It's true that you can't learn anything from 99 songs, but if you can treat me with courtesy, are you still afraid that the best people in the world won't come to you?" [5]
Qi Huangong thought this man was right, so he welcomed him into the hall of recruiting talents and gave him a grand reception. The news spread like wildfire, and sure enough, in less than a month, many talents came to Qi from all directions. [5]
Reflect the facts
This story shows that the appearance of Jiujiu songs will not be later than the Spring and Autumn Period and the Warring States Period, when Jiujiu songs have been widely circulated. The earliest Jiujiu songs came first in large numbers, from "998 1" to "224". When Shu Jing the Grandson expanded to "One is the same", it was from the 5th century to10th century. In the Song Dynasty, about13-14th century, the order of Jiujiu songs was reversed and changed from "one to one" to "998 1". [5]