Although there are some minor mistakes, it is a testimony to the popularity of the Han Dynasty's arithmetic. The multiplication formula we know by heart 1800 years ago in the Eastern Han Dynasty Carved on brick 40 numbers stacked crookedly in two columns The people who wrote them seemed a little careless Wrong spelling of "七" It's like looking in the mirror at my original self The order of "Sanjiu", "Erjiu" and "Sijiu" is also a bit confusing But their appearance Archaeological experts are overjoyed This is the first time that brick inscriptions on Han tombs have been found in China. Discover the multiplication formula This brick with the formula engraved on it It is also a study of the history of mathematics in the Han Dynasty. Provides valuable physical information △ Pottery bricks with inscriptions on them: “Multiplication formula” 1981 "Multiplication Formula" Engraved Ceramic Brick Unearthed from the Eastern Han Tomb in Honghuayuan, Nantou, Shenzhen At first glance it looks a bit ordinary On the mottled surface The diamond pattern accounts for two-thirds Another third was wiped out The multiplication formula is engraved in Han Li version △ Pottery bricks with inscriptions on them: “Multiplication formula” These two columns of text are sufficient to prove that 1800 years ago, the people of Lingnan lived in remote areas I have mastered the multiplication formula The clay is not dry yet, and the craftsman carves it casually Prove that "Nine-Nine Songs" was already a "popular song" in the Han Dynasty The multiplication formula is also called "Nine-Nine Song" There are only 40 numbers on this tile No formal signature or inscription So who wrote on the tiles? △ A rubbing of a ceramic brick with the inscription "Nine-Nine Multiplication Formula" According to archaeological experts The engraving of these two lines of multiplication formulas A brick-making craftsman He reviewed it while the bricks were still wet. Multiplication formulas related to "nine" The undried clay increases the difficulty of engraving Therefore, the handwriting has a clumsy and cute feeling. According to the error rate of the two lines of formulas Expert speculation The engraver may have had limited education But in between the work of firing the ceramic tiles I wrote down the multiplication table at random. This shows that the "Nine-Nine Song" Already widely circulated Becoming a "popular song" that can be easily sung From sentence 36 to sentence 45, from reverse to normal Two iterations and upgrades of Jiujiu Song The multiplication table is the basic calculation rule of mathematical operations. As early as the Spring and Autumn Period and the Warring States Period Already widely used There are records in Xunzi and Guanzi. The earliest archaeological discoveries in my country The most complete multiplication table The following is the simplified multiplication formula △The bamboo slips of the multiplication formula are collected in the Liye Qin Bamboo Slips Museum Early multiplication formula Arranged in reverse order from largest to smallest And there is no formula related to "one" Starting from "Ninety-nine Eighty-one" Until "two two equals four" Around 4th century AD Multiplication formulas were gradually added Multiplication involving the number one Expanded to the 45 sentences we are familiar with This is its first "iteration" In Jia Sixie's "Qimin Yaoshu" "Nine-nine" is a must-learn chapter for children aged 9-14 △ "Qimin Yaoshu" (from the collection of China Agricultural Museum) Starting from the Song Dynasty The order of the formula is no longer reversed From "one one" to "nine nine" After two "updates and upgrades" The multiplication formula has become the current version 3.0 Handwritten words The secret that has been passed down orally till now Five thousand years of civilization inheritance, never interrupted |
<<: After digging and digging in the durian flesh, these 6 rumors were finally revealed!
>>: Can load-bearing walls be demolished? Demolishing the wrong wall can have serious consequences!
During this period, local epidemics have occurred...
Diabetes has become widely known for its characte...
Generally, when bidding promotion is just started...
Introduction to AndroidManifest File AndroidManif...
With the development of App development technolog...
During my time as Party B, I wrote more than 100 ...
From 1996 to 2013: How is the once popular websit...
In the past week, the biggest event in the televi...
Course List Lesson 1-The relationship between bac...
Recently, Google plans to close its four Basecamp...
[[182651]] Android's Styles and Themes are ve...
About 250 million years ago, the largest extincti...
The mobile phone industry can be said to be an ab...
Hot Template 01: "A Decade of XXX" For ...
1. Service Introduction Xiaomi App Store is the f...