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Chapter 42 I'm Going Home
Ding Yi took out a pen and paper, which was a Chenguang pencil.He held a pencil and explained to Li Tai for a while, and then said with a serious face: "Your Highness, you can call the arithmetic I have learned as 'mathematics'. It is separated from arithmetic, but it is more pure and profound. Mathematics The same is true for a broad and profound subject, I will start with the simplest teaching."

"Well, let's start!" Li Tai didn't really believe this.

Ding Yi didn't care about Li Tai's attitude, picked up a pencil and wrote ten Arabic numerals from 0-9 on the paper, and said to Li Tai: "This is used to replace the numbers one, two, three, four, five, and it will be more convenient. Convenience and conciseness, the vertical one is 1, the goose-like one is 2..."

Ding Yi taught Li Tai very seriously, and Li Tai listened very carefully, looking very interesting.

……

At this time, Kong Yingda had already entered the palace to meet Li Er!
Li Er held the paper in his hand, walked back and forth to read the poems on the paper, then suddenly turned around and asked, "You said that kid Ding Yi made it?"

"Your Majesty, this poem is exactly what Ding Yi did, but he..." Kong Yingda really couldn't tell what Ding Yi did, it was like playing with a child!

Li Er asked again: "What's the problem with Kong Qing?"

"Your Majesty, Na Ding Yi's bet with the minister was just to get the minister to agree to a condition. It was only after the competition that he raised the condition, and the minister rejected him with poetry and book etiquette, and he wrote this poem." Kong Yingda was talking about the bet with Ding Yi.

Li Er also knew the results of the previous competition, and he was even more curious about Ding Yi now. He heard what he said about mathematics, physics and chemistry, and now he showed them one by one.It's just that he didn't know anything about what happened later, so he asked, "I don't know what conditions he proposed?"

"Your Majesty, I... Ding Yi said he would ask for half a year's leave. Because of the poem, I can only agree to his request." Kong Yingda replied helplessly.

Li Eryi was anxious when he heard this: "You said that he did these things just to ask for leave? If he asks for leave, it will be half a year!"

Kong Yingda looked at the distraught Li Er and replied: "Yes, Ding Yi said that he really can't learn much in the Imperial College, so he has to ask for half a year's leave!"

"Hmph! This arrogant boy really doesn't know what to do! Please take half a year's leave. What kind of place is he in the Imperial College! You can't learn anything yet! Someone, tell Ding Yi to enter the palace as soon as possible!" Li Er was particularly angry with Ding Yi's actions. Big, let him enter the palace to be held accountable.

When Kong Yingda saw the situation, it was very different from his own purpose!Hastily bowed and said: "Your Majesty, it's better not to get angry because of this. I just want to ask Your Majesty to let Ding Yi be in charge of the doctorate of the Guozijian School of Computing. Such a great talent, it would be a pity if it goes to waste!"

When Li Eryi heard that Kong Yingda wanted Ding Yi to become a doctor of mathematics, he looked at him curiously for a moment: "What is he capable of? Kong Qing must have been dizzy from anger!"

"Your Majesty, this son of Ding Yi is good at arithmetic, far surpassing all the doctors of the Imperial Academy, and even the minister is impressed by him." Kong Yingda is not a bad old man.

Li Er became interested: "Oh? Even Kong Qing is not as good as Ding Yi in arithmetic? This Ding Yi has reached such a level in arithmetic!"

"Yes, Your Majesty! Ding Yi has a different view on mathematics than the current one on mathematics. Today's answer is even more unique. And for the last question, he just gave the answer, there is no process, and he said it. No one can understand."

Li Er couldn't help thinking of what Ding Yi said the day before yesterday. At that time, he only sighed at what he said about physical chemistry, and only listened to the other words.I didn't think about it seriously, but now it seems that I have to get to know this Ding Yi again.

"Kong Qing, don't worry, I will make a decision after I take the exam!"

When Kong Yingda heard this, he was speechless. The emperor said so, so let's do it!

……

Ding Yi reluctantly followed the eunuch to the palace, and Li Tai also followed.He wants to enter the palace to show his filial piety!

After entering the hall, he bowed and said: "Your Majesty, hello! Kong Jijiu!"

"I have seen my father! Master Kong!"

For Ding Yi's special greeting, Li Er was very surprised.There is no special account for the eunuchs to teach Ding Yi etiquette.

Seeing that Li Tai had also come, Li Er asked, "Qing Que, why did you come into the palace with Ding Yi?"

"Going back to Emperor Father, my son asked about mathematics at Uncle Shi Ping's house, so he came with him."

Hearing his son ask Ding Yi about mathematics, Li Er asked, "Oh? Then I don't know what you can learn?"

Li Tai replied: "My son has seen a different world in Shipingbo's house. Just the foundation of mathematics has made me fascinated. My son came here this time to plead with Fufu Huang to allow me My son studied mathematics with Uncle Shi Ping."

Ding Yi listened to it from the sidelines. If you follow me to learn mathematics, can I do other things?Li Er and Kong Yingda looked at each other, seeing surprise in each other's eyes.

"Qingque, have you thought about it? Once this matter is decided, it cannot be changed!" Li Er asked seriously.

Li Tai said sincerely: "I have already made up my mind to study mathematics with Uncle Shi Ping. I will not delay studying the scriptures on weekdays."

Seeing this, Li Er agreed: "If that's the case, then you can learn mathematics from Ding Yi! Just don't delay the scriptures."

"Thank you, father!"

"Your Majesty, although I have a lot of things to do on weekdays, I will try my best to teach His Majesty King Yue mathematics. Please don't worry, Your Majesty!" Ding Yi didn't want to be tied down. He would go back to Shiping County in a few days, so how could he have time to accompany him? Li Tai.

As soon as Li Er heard this, he thought of what happened to Ding Yi before, and said seriously: "Hmph! I haven't settled the score with you yet, what can you do for an earl with no official position! You asked Qing Kong for half a year's leave before, and then Why?"

"Your Majesty, you also know that I came to Chang'an alone, and the huge family business needs to be maintained by myself. And there is also the physical and chemical matter that I told you before. Do you want me to let this matter go?"

Kong Yingda and Li Tai didn't know that Li Er and Ding Yi were talking about physical chemistry the night before, so they couldn't help but stretch their ears curiously when they heard it.

Li Er also thought of the thing that can cure Qi disease, fly into the sky, and kill countless people at once.However, he was very unhappy with Ding Yi's threatening words, and said in a deep voice: "You can study this matter yourself, but you must not forget other things. Change your temper and do things well, I will not treat you badly. Kong Qing asked you to go to the Mathematical Academy to teach arithmetic, then go!"

"Ah, Your Majesty! I just asked for leave, can I not go?" Teaching?What the hell?

"You... dare to ask for leave!"

"No, Your Majesty, I have to go back to Shiping in the near future, and get new crops before taking care of them! If it succeeds, I can add another staple food to Tang Dynasty, and the yield is not low!" Only by releasing the killer weapon of corn, can we avoid it teach!
"What did you say?"

.........

(End of this chapter)