"All of you have gone to elementary school. Professor Zhao looked around the studio and said, "Nowadays, we will learn simple equations in our primary school math textbooks. One of the most important steps in solving an equation is to set unknowns. ”

This unknown, written on paper, is a big cross, pronounced as X in English and mixed in Chinese. Many people nowadays think that the source of this cross in the equation is the English alphabet, but it is actually wrong, and it is wrong in terms of cause and effect. ”

Professor Zhao held the table with one hand, leaned on the podium and looked at the crowd and said, "Actually, this X has appeared since the Tang Dynasty, and he was not called X in ancient China, nor was it called a cross, but a mix! The person who invented the symbol of mixing is the sword fairy Li Bai, who is the first mathematician in China to propose the solution of equations, and is also the inventor of character mixing. ”

I'll it!

Xun Ze was stunned to see Professor Zhao introduce the mathematician Li Bai's various contributions to human mathematics, and his heart was really a bit of a mother!

Why is it that the protagonist of other people's families is himself as a copyist, and when he comes to me, it is my student who is a copyist.

After introducing Li Bai's identity as a mathematician, Professor Zhao began to introduce Li Bai's identity as a poet.

Although Li Bai shifted his hobbies to the establishment of a fencing gym after he went back, after all, his talent was still there, so he often wrote some poems. But except for 'killing one person in ten steps, there is no line left for a thousand miles.' Except for the chivalrous line, the other poems are called Xunze that I have never heard of, and they should be new.

Although the quality of these poems is good, on the one hand, Li Bai Jianxian's identity conceals the fact that he is a poet, and on the other hand, these new poems are not only small in number, but also mostly related to swordsmanship in content, so they have not been paid attention to by the literary circles of later generations, resulting in few people now hearing about it, and they have not been processed by literati.

Contrary to what everyone thinks, the poems we read now are different from those written by the original authors. Many poems have been handed down to the present, but in fact, they have been modified by later literati in order to adapt to the aesthetics of the times.

Take Li Bai's Silent Night Thoughts as an example, the version we read is: The bright moonlight in front of the bed is suspected to be frost on the ground. Raise your head to look at the bright moon and bow your head to think of your hometown. And Li Bai's original version looked like this: looking at the moonlight before the bed, it was suspected that it was frost on the ground. Raise your head to look at the mountains and moons, and bow your head to think of your hometown.

The reason why there is a discrepancy between the two versions is because the literati later changed the content when they re-compiled, among which the change of looking up at the mountain and the moon to looking at the bright moon was changed in the "Ten Thousand Quatrains of the Tang Dynasty" published by Wanli in the Ming Dynasty, and in the Kangxi period of the Qing Dynasty, the first sentence of the "Tang Poetry Tailoring" published by the people changed the first sentence to the bright moonlight in front of the bed.

Later, in the Qianlong period, people combined these two versions together, and they became the silent night thoughts we are now familiar with.

Of course, there are good and bad changes to this change, the advantage is that it is easier to understand, and the disadvantage is that the original meaning is misunderstood, because the bed Li Bai said is not the current bed, but refers to the well rail.

That's why the sentence circulating on the Internet is 'bright moonlight in front of the bed, two pairs of shoes on the ground.' This sentence is actually not a small yellow poem, but a horror poem. Because there are suddenly two extra pairs of shoes on the side of the well railing, it is easy to make people think about it.

About half an hour later, Professor Zhao finished talking about Li Bai's identity as a mathematician and poet, and then the program went to the audience to ask questions.

"Hello Professor Zhao. A young man wearing gold-rimmed glasses stood up and said to Professor Zhao, "You just said that the X we are using now was actually invented by Li Bai, and I don't agree with that. Because there has been a debate in national historiography circles, most Western scholars believe that solving equations was actually invented by Westerners. Li Bai's invention of solving equations and X in the Tang Dynasty only exists in some wild historical records, and China's official history has not recorded it, and later the relevant arithmetic books in ancient China did not clearly indicate that Li Bai was the person who invented the mixed solution number, not to mention that there is still a big gap between the number of mixed solutions and the solution equation in China. ”

After listening to the question of the man with gold wire glasses, Professor Zhao was silent for a moment, and then said, "China's set mixed solution is indeed a little different from the modern solution equation, but it already has a rough prototype of understanding the equation. Although Li Bai's invention of mixing the number and X is not recorded in the official history of our country, it is recorded in many folk histories. The authenticity of the wild history, although it is a little worse than the official history. However, compared with the ancient historical records of the West, which are almost legends, the authenticity of China's wild history is still very high. So I think it's still very real. ”

"But after all, it's just a real thing, not a real thing. The man with gold-wired glasses then questioned, "There is no relevant physical and archaeological record to support it, and I think it is very wrong for you to rashly say this conclusion with great certainty today." After all, the conclusion I said was agreed by European and American scholars. Your conclusion is just the word of the family.

"Why do European and American scholars speak the truth, and what our Chinese scholars say is the words of one family?" Professor Zhao was a little angry, "May I ask if European and American scholars have any physical support for their theories? They don't have any, why do you ask us to have them?"

Because the show was recorded, the later argument between Professor Zhao and the man with gold wire glasses called Xun Ze didn't see it, and it should have been cut. After all, the paragraph just now left to stir up the topic, and then broadcast it down, it seems a bit deliberately rhythmic.

However, it is very difficult to call Xun Ze, and the man with gold wire glasses is questioning.

The problem of double standards in the field of history has always existed, and Xun Ze was not a related professional before, so he didn't care about it, but he didn't expect it to be related to himself this time.

Why didn't Li Bai invent X and create an equation?!

I taught him personally, how can this matter be fake?!

Although the timeline has not changed before, solving the equation does not have anything to do with Li Bai. But now the timeline has changed.

Li Bai is indeed the first person on the earth to master solving equations and setting unknowns!

Why is it not right, why is there no physical and archaeological records to support it.

It's so angry.

Wait for Li Bai to come back tomorrow, and let Li Bai, this kid, completely understand the solution of the equation for me. Not only should he be taught to all the disciples of the Sword Pavilion in the future, but he would also have to compile a book and bury it in a coffin. When the time comes, whoever dares to question it will let Li Bai tell him the location of his coffin, and he will take someone to dig out the coffin and respond to these people with real objects!