: Resolving Confusion

"Isn't it very frustrating?" Professor Han patted Ivan on the shoulder and smiled, "Young man, don't talk about you, I got these questions a few years ago, and it feels the same as you are now."

Ivan looked at Professor Han in confusion: "Have you done these questions?"

"Of course I did it, otherwise how could I think it out so quickly?" Professor Han saw Yifan's face full of doubts and then said: "Actually, the questions you did cannot represent mathematics at all. At best, they can only be called math games."

"Math Game?"

"Yes, math games, let's give an example. Mathematics is like you learn Chinese, and Olympiad problems are like you learn to write poetry."

Ivan didn't seem to be too fond of this metaphor, and his eyes were a little confused.

"I'll ask you first, why do you want to learn mathematics?" Professor Han saw Ivan's expression and decided to change his expression.

"There is truth in mathematics," Ivan replied.

"It's very good." Professor Han was quite satisfied with this answer.

"What is truth? Truth is a natural law. For example, 1+1 is equal to 2. No matter where you go, you go to heaven and earth, even if you enter a black hole, 1+1 cannot be equal to 3. This is the truth. Learning mathematics is learning laws and understanding these laws. What do you think?"

"It's right." Ivan nodded in agreement, which was also one of his motivations to learn magic.

"It's like learning Chinese is the original meaning of learning expression skills, and the purpose is to learn to speak and write."

Ivan thought about these words carefully and seemed to understand it in his heart.

"When a person does something, he must first recognize his purpose, so that he can avoid detours." Professor Han looked at Ivan's face with a deep thoughtful and careful listening, and was a little satisfied. These words were said to ordinary young people who rarely listened to them. "It is undeniable that poetry can also express some things, just like Olympiad problems can also contain some mathematical rules, but poetry is more infecting people's emotions through rhythm and format, just like people sing. The lyrics written by people in ancient times were actually poems used to sing, both music and rhythm."

"Solving Olympiad problems is like writing poetry. Writing good poems does not mean that you understand the truth, and solving Olympiad problems well cannot mean that you can't express mathematical ability. Nowadays, many new students have this problem. Many people try their best to solve arcane problems in high school, just like literati in ancient times wrote poetry when they had nothing to do. No matter how good the poems were written, they were just for the sake of quickness and real good things..."

Professor Han's words made Yifan suddenly realize it. When he went out, he threw the arcane question bank in his hand into the trash can.

Professor Han recommended some books to him for learning mathematics, and Ivan plunged into the library with a long list of books.

After class, Nangong Yun came to the library as usual. Ningzhou University's library has rich collections and a quiet environment. She always likes to sit in the seat by the window in the afternoon, holding a novel in her hand, listening to light music in her ears. When she is tired of reading, she looks up at the sunshine, white clouds or raindrops outside the window. This is the most comfortable enjoyment for her.

Nangong Yun planned this way today. After class, she refused the proposal of several friends to ask her to go shopping in the city center. She believed that purposeless shopping was simply an external manifestation of human spirit emptiness, so she was unwilling to join these activities. When walking in the library corridor, she watched the sunlight form beautiful patterns on the ground through the window flowers on the corridor, and felt very peaceful.

Several boys holding books walked over from the other side of the corridor, breaking Nangong Yun's quiet atmosphere. As they approached, she glanced at them. The smile on their faces was the kind of smile she hated the most, frivolous and pleasing. When the eyes were connected, the other party could not resist Nangong Yun's powerful aura and hurriedly avoided them.

After passing by, I couldn't help but look back and try my best to take a few more glances.

With a little dissatisfaction, Nangong Yun found the novel he had not finished reading last time in the library and came to the window seat that should have belonged to him, but found that there was already someone. After a closer look, it was Yifan who had just been driven out by him.

Ivan's hair has returned to normal, but this does not prevent Nangong Yun from having a bad impression of him. Ivan himself did not know that the large number of books on the table and his serious appearance were completely a prop for acting and a clumsy means of retreating to advance.

The other party must have conducted an investigation on herself first. These boys have always spent their time on these completely meaningless things. She can already imagine that when she asks the other party to give up her seat, the other party will definitely refuse, and then tactfully ask not to mind sitting together...

Nangong Yun sneered and left the library. She decided to change her itinerary for the time being and first go to the literary association she participated in to see if there are any activities.

The Literary Association had no activity, so Nangong Yun left for nothing. If he could reveal his intention to participate in the event now, I believe that the male members in the association would definitely run out of the Internet cafe, throw down the mouse in their hands, bring a pen and patterned letter sign paper, and hold a show for her as fast as possible.

After leaving, Nangong Yun frowned and looked at the time. Half an hour had passed. That guy should have left.

With this idea, she returned to the library.

As expected, Nangong Yun was a little disgusted, so he walked over and hesitated for a while before sitting down. He took out a tissue from his pocket and carefully wiped it on the seat. When he touched the stool, there was still a little warmth on the stool, which made Nangong Yun look a little ugly.

Just as I opened the novel and was about to bring my headphones with me, Ivan came back with the basic book.

Yifan was stunned for a moment, but unexpectedly, he was snatched his seat as soon as he walked away. He took a casual look and sat directly opposite Nangong Yun.

The sunlight through the windows is still warm, but the temperature in the room seems to drop by 10 degrees instantly.

Ivan's behavior suddenly put Nangong Yun in a dilemma.

Leaving means weakness, and Nangong Yun cannot accept it.

If he didn't leave, he would follow the other party's wishes, and Nangong Yun also didn't want to accept it.

It was better to die in battle than to be a deserter. Nangong Yun turned the volume in his headphones to a great extent and gritted his teeth and looked at the book in his hand.

Time passed by minute by minute, and in the library, I could only hear the rustling sound of Ivan writing and the occasional "cry". It was Miss Nangong's flipping book sound, but it seemed to be a little louder.

Ivan writes and writes very quickly. When he does not involve arcane exercises like artworks, Ivan's efficient learning efficiency is completely reflected. However, in Nangong Yun's eyes, this guy is simply demonstrating because the other party doesn't want to be learning at all. He is simply writing randomly and writing randomly. Nangong can conclude that the things the other party wrote on the draft paper are mostly meaningless numbers...

Ivan, who was writing casually, kept this speed. I didn't know what the draft paper on the table would be, and it seemed that I could not finish it. If Nangong still kept a little calm and rational and carefully observed, it would not be difficult for her to find that Ivan did not bring so many draft papers at all. Whenever Ivan took the top draft paper to the bottom, the paper below would definitely be blank, and the one I just took off would automatically disappear after a while...

Mathematics in high school are not difficult or simple, functions, probability, etc. Ivan only learned basic thinking and some concepts based on Professor Han’s guidance. Geometry is something Ivan is more concerned about because it has a certain relationship with the construction of magic. In the afternoon, Ivan basically deepened his understanding of geometry theorem through some relatively simple but representative proof questions.

Functions are actually mathematical expressions of geometry. When I first came into contact with functions in high school, they were very simple, monotonously increased and decreased. You can understand the odd and even things by looking at the graph. It is not difficult to understand the concepts. Of course, with these preliminary understandings, it is definitely impossible to do the college entrance examination paper, but just to understand the concepts of mathematics, that is enough.

Except for the concept of N power in algebra that made Ivan a bit of brainstorm, after all, he had never been exposed to similar concepts before, and the vectors, sets, and sequences afterwards were not very abstract, and Ivan made a very smooth progress in the afternoon.

At 5 pm, the teacher in charge of locking the door of the library came to Qing people. Ivan chose a book from a pile of books in a dilemma and left in disappointment.

Nangong Yun looked at Yifan who was walking away as if nothing had happened, and she didn't know what it felt. She sat for about an hour and a half. Within this hour and a half, the other party had never seen her at all, and she could not recall a word of what the novel she read herself was.

Wu Tong! Before leaving, when Yifan was borrowing books, Nangong Yun "accidentally" saw this name from his loan certificate. You'd better be careful in the future...

"Boss, turn the electric fan down a little, the electricity bill is not expensive, it's cold." Wu Tong's voice sounded from the corner of the bag Internet cafe.

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