"Your Majesty has come to see the ministers, but is there something wrong?" Xu Guangqi knew that the emperor would not come to see him in vain, and he would definitely come over with some things. Try asking.

"Hehe, Master Xu's expectations are good, I have something to do, and I'm going to talk to Master Xu." Yang Reform really has something to talk about with Xu Guangqi.

"Your Majesty, what do you dare to ask? But drought and disaster resistance, sweet potatoes? In this way, the old minister has already made arrangements and is about to report to His Majesty. Xu Guangqi thought that the emperor was going to discuss the sweet potato with him.

"Hehe, this sweet potato matter, since I handed it over to Master Xu, I naturally can trust Master Xu, this is a person, a thing, a money, Master Xu just has to speak, I will definitely fully support Master Xu." I came here today, first, I was not worried about Master Xu's body, so I came to take a look; Second, I have some mathematical things that I want to discuss with Master Xu. Although Yang Reform is very concerned about the promotion of sweet potatoes, he also knows that sweet potatoes do not grow from the ground in a day or two, since they have been handed over to the people below, they only need to maintain attention and support, there is no need to interfere excessively, and they do not have so much energy to interfere.

"The minister thanked Your Majesty, the minister really needs some money, and mobilize some manpower, since Your Majesty put down his words, the old minister is presumptuous. Hehe, I wonder if Your Majesty has any mathematical things to discuss with your ministers today? "Xu Guangqi's sweet potato promotion plan has been agreed before, but the specific implementation of this requires silver and manpower, so this has the support of the emperor, and the strength of the emperor's support is directly related to the effect of the promotion of sweet potatoes.

"Ome, bring me that paper bag."

Wang Chengen hurriedly took a paper bag and handed it to the emperor.

Yang Gengai took the paper bag, took out a few pieces of paper from it, handed them to Xu Guangqi, and said: "Master Xu, look at these symbols, I feel that this mathematical operation is too complicated to write in words, which is not conducive to fast writing, nor is it conducive to understanding, and it is not conducive to large-scale calculations, so I use some simple, one-stroke symbols to replace these words, so I feel that it can speed up this mathematical operation, and it is also convenient for writing, I think it is useful, so I will show it to Master Xu, I want to hear Master Xu's opinion." ”

Xu Guangqi took the pages, and looked at them carefully, from the frowning at the beginning, to the confusion later, and then with a hint of smiling, and then to the end, he was already concentrating.

Yang Gai has 100% confidence in his "things" to impress this pioneer of mathematics. What Yang reformed to Xu Guangqi was actually very simple, that is, the operation symbolization of later generations, using Arabic numerals and the operator "+-×/", plus a, b, c, d and other symbols instead of words.

This is not only to replace the complicated writing of "words and numbers" with simple symbols, but also to use symbols for mathematical operations, which will make ancient mathematics from the importance of practical sublimation to the importance of theory, for the late Ming Dynasty "science" to open a skylight.

Yang Gengai has also read Xu Guangqi's translation of "Geometric Original", in which the figures, angles, and Chinese characters such as A, B, and C are used. It is not the abbreviation of a, b, c and the like in the West, and when it comes to calculation, it is more troublesome, so Yang Gengai intends to promote the symbolization of numbers and operations, accelerate the development trajectory of this "mathematical science", and improve the development speed of mathematics.

After watching it for a while, Xu Guangqi said: "Your Majesty is a genius, Your Majesty is a great talent, and the old minister is not as good as ten thousand, in this way, mathematics will undergo earth-shaking changes, and from then on it will soar into the sky, which can be regarded as the size of the universe, the size of the dust, the movement of the stars, and the agricultural calendar!" I didn't expect Your Majesty to have such an opinion, the old minister has nothing to teach His Majesty, the old saying 'the master is the teacher', the ancients did not deceive me,...... With Your Majesty's symbolic arithmetic skills, the old minister should worship His Majesty as a teacher! ”

Xu Guangqi is serious about worshipping the emperor as a teacher, this, can make Yang Reform extremely embarrassing, he is just the mathematical achievements that need to be accumulated in one or two hundred years, to "steal" it, but it is not his own achievements, not as good as some "brick family", nothing to put gold on his face, he does not have that kind of "ability", and hurriedly said: "Master Xu must not be like this, I am also interested in mathematics because I have read Master Xu's "Geometric Original", and I have studied it. I also have the idea of promoting this symbolic arithmetic, besides, the arithmetic symbols in this symbolic arithmetic, the symbols representing numbers, are not my first creation, I am just transplanting the wisdom of others, I asked John Tang, he told me, the original book of "Geometric Original", used symbols to represent angles, and Master Xu's book, it seems to use this text to record and translate, so, the record is complicated, and it is not easy to understand, moreover, it is impossible to carry out effective calculations, I think, Since the substitution of symbols is conducive to writing and comprehension, as well as arithmetic, it is simply replaced by symbols, so I am not an initiative, just a summary and promotion, not a genius as Master Xu said, besides, if I am addicted to this way, the ministers will be wordy again, and I will blame Master Xu for the crime of lax teaching. ”

Yang Gai didn't want to get the title of "Emperor of Mathematical Bricks" by himself. In this way, isn't it too "faceless", or in other words, in the future, there will be an Internet and a starting point, and when others write about traveling through their own period, they will definitely break the news that they are a traverser! Isn't that too obvious? When the time comes, the people of the Time and Space Administration will come to arrest themselves, what can they do? hurriedly excused himself. Throw these arithmetic symbols, the origin of Arabic numerals, to outsiders. You can't ask for that.

"Your Majesty is right, thank you Your Majesty for reminding me, the minister is confused, and His Majesty should not be indulged in this." Xu Guangqi saw that the emperor was vigorously refusing, and it was also reasonable, the emperor is the emperor, and he should not specialize in this kind of "side-door and left-handed way", otherwise, the courtiers will know, and they will have to go to various admonitions again, and they will no longer say anything about worshipping the emperor as a teacher.

Yang Reform wiped sweat in his heart, but it was really dangerous. In this way, after the post, others check the information, I rely on, before modern times, more than 90% of the world's various important inventions are invented by the great "Emperor", this guy, clearly is a traverser, otherwise, how can it be that in just a few years, the invention of so many things that have affected the world so far.

Xu Guangqi's eyes were a little ethereal, wiped his beard, and said: "Your Majesty wants to promote this symbolic operation, according to the minister, you will definitely be able to rewrite the history of mathematics!" Alas...... It's a pity that Your Majesty is the Son of Heaven, otherwise, the achievements in this mathematics will be limitless! It's a pity, it's a pity...... Xu Guangqi is a pity again, such a smart young man, it's a pity that he is an emperor, otherwise, if he is attentive to this mathematics, he will definitely carry forward this mathematics, leave a name in history, and will be remembered by future generations.

"Oh, Master Xu, this symbolic arithmetic technique, I am ready to promote it immediately, I think that the mathematics of my dynasty will definitely be able to take off, and this mathematics, I always feel that it will be the key to open the door of truth in the world! So, time is running out, and I am in a hurry, so I came to Master Sun? Of course, thanks to the nine-year compulsory education, Yang reform's mathematics grades are not bad, if you want to say how to calculate, Yang Reform must know some, but if you want to say that you want to study mathematics and study the improvement of ancient mathematics, this, it is really not clear. The typical only knows what it is, but does not know why it is. This all depends on Xu Guangqi.

Only by popularizing the symbolization of mathematics can we completely end the ancient Chinese situation of emphasizing practicality and not emphasizing the study of theoretical systems. Let this key to open the door to science appear on the land of the Ming Dynasty as early as possible.

"A key? Your Majesty's analogy is truly apt! …… Your Majesty, this art of symbolic arithmetic, if popularized, must be the greatest success in the history of mathematics in our dynasty! Thinking about the land of China, all dynasties and dynasties only pay attention to this practical application, but do not pay attention to it. Counting, writing, and arithmetic still use this text as an expression, which is really wrong, the minister wanted to make a statement to His Majesty, and study the method of this symbol instead of words to calculate, but unfortunately, for various reasons, has not been realized, so that the old minister's translation, but also had to use words as an expression, which is really a pity for the minister, but I didn't expect that Your Majesty is so smart, just read it, you can understand the truth of it, it is really a blessing for my dynasty! This mathematics, as the minister said earlier, 'Whoever can master this book cannot do anything; Those who are eager to learn this book will not learn anything', and the minister also felt that this mathematics must be the key to open the door of truth in the future, as His Majesty said! The minister thinks that this mathematics, 'after a hundred years, there will be no one who will not learn', and His Majesty's move is a move for the benefit of future generations! It is the luck of China. ”

Xu Guangqi sighed about China's mistakes in mathematics, and predicted the historical role of mathematics in the future, this vision, so that Yang Reform admired, this is the giant of history, is the bull who can clear the fog of history and see the future. It's not you, the traverser, who relies on future knowledge to eat.

"I deeply sympathize with Master Xu's words, and I also feel that this mathematics will be a key to unlocking all the secrets in the universe in the future, so thinking of this, I also feel deep pressure and responsibility, and I urgently hope to introduce and promote the symbolization and operation of this mathematics as soon as possible, so that the level of mathematics in my dynasty will open up a new situation.

Yang Reform first affirmed Xu Guangqi's gaze, which is almost history, a person can foresee history, he must be a great person, and at the same time, he stinks, thinking that others should not forget themselves in the future. But I forgot that I was still trying to erase the traces of my coming to this world just now, afraid that others would regard me as a traverser when they started some books.

(To be continued)