Chapter 2455 Chao Ruqingsi

Xu Yi walked through the door without saying a word. Suddenly, everyone was paying attention. The oily middle-aged man glared at Xu Yi. Xu Yi came closer and whispered, "The principal is looking for you. It's urgent."

After saying that, he turned around and left.

The oily middle-aged man was startled, then waved his hand and said, "Everyone, study by yourself first. The homework is the after-school exercises of Unit 3. When the bell rings, everyone goes on their own."

After saying that, he hurriedly chased Xu Yi, "Hey, who are you, teacher? Why haven't I seen you before?"

He looked at Xu Yi's cool and frivolous short-sleeved shorts and murmured in his heart.

Xu Yi said, "I am the new teacher Xu from the school office. Secretary Cui, the disciplinary inspector, is in charge of the school office. Come on, I think Secretary Cui is very angry."

He remembered the names of the school leaders very well when he passed by the school affairs column at lightning speed.

The oily middle-aged man's body suddenly softened. Xu Yi supported him and said, "When things come to a close, you won't want to just walk away. Think about your own problems and strive for leniency."

"I, I really..."

The greasy middle-aged man is still waiting to cry.

Xu Yi sighed and said, "I'm also soft-hearted. Okay, you go and wash up quickly. This sweat will help you calm down."

As if he had received an amnesty, the oily middle-aged man rushed towards the rest room in a panic, followed by Xu Yi.

After running up to the backmost room on the sixth floor, the oily middle-aged man opened the door. Xu Yi then entered, closed the door, and pulled the oily middle-aged man to sit on a chair, "Brother, what's the matter?" Don’t ask, just tell me about calculus.”

The oily middle-aged man was confused and stared at Xu Yi like a monster.

Xu Yi didn't have time to explain to him, so he took out a kitchen knife that he had picked up when he was walking through the residential area. Without saying anything, he slashed his arm, ripping open the skin and revealing a horrific wound.

Nothing was dripping with blood and it was more impactful. The oily middle-aged man suddenly became quiet and no longer bothered about the reason why Xu Yi did this.

He only knows that if he can be so cruel to himself, he can be even more cruel to others.

Xu Yi grabbed the pen and paper on the table and quickly reproduced the question of the man in the hat on the paper, "Can calculus be solved?"

The oily middle-aged man snatched the gel pen from Xu Yi's hand, took out a new piece of manuscript paper, and began to list the calculation formulas on the paper. He muttered, "Calculus is not enough. This also involves a problem of curvature, limits and indefinite integrals." All knowledge points must be used..."

After brushing and brushing, in just over a minute, the oily middle-aged man finished his work and listed out the final results.

Xu Yi took the piece of paper and couldn't understand it at all.

He knew that this was because his relevant knowledge points had no foundation. At that moment, he dragged the oily middle-aged man to start from calculus.

The oily middle-aged man is extremely old, but he can't use up Xu Yi's large vegetable blade, so he can only start from the beginning of calculus.

Unexpectedly, Xu Yi's ability to understand is astonishing. He often just starts with the beginning and points out the key points, and Xu Yi can continue to retell the story. When he encounters a obstacle, he adds a few more words, and Xu Yi suddenly becomes enlightened again.

Xu Yi mastered the entire calculus knowledge in just half an hour.

Again, mathematics is a technology as well as an idea. Once you have a profound mathematical idea, it is not difficult to master specific technologies.

Xu Yi did not go to the Internet cafe to study Baidu Calculus, but chose to rush to the university because he anticipated that he might encounter problems during the study process and would need someone to answer them in time.

After discussing calculus, the oily middle-aged man began to talk about curvature, limits, indefinite integrals, Lagrange's theorem...

The speed at which Xu Yi mastered it made the oily middle-aged man secretly stunned. He even wondered if all this was a prank. Otherwise, why would this person come to him to discuss such superficial mathematical knowledge when he clearly had such terrifying mathematical abilities.

After Xu Yi understood all the relevant knowledge points to solve the problem of the man in a hat, he casually wrote down a few mathematical problems in the world of cultivation that he couldn't figure out.

The oily middle-aged man said, "What on earth are you talking about? I can't even understand the question. It's too complicated. You have to go to the Institute of Mathematics."

The answer of the oily middle-aged man verified Xu Yi's guess that the mathematical ability of this world may not surpass that world, but as far as mathematical tools are concerned, the mathematical tools of this world are really sharp.

"If there are any other mathematical tools similar to calculus, let me know. Hurry up!"

Xu Yi gestured with the kitchen knife in his hand, and the oily middle-aged man shivered. He really didn't understand how the guy in front of him could perfectly combine the image of being thirsty for knowledge and being vicious.

Suddenly, Xu Yi's eyes glanced at the thick bookshelf on the left wall. He rushed forward and started searching. Soon, he found a tome about functions and started studying.

He was flipping through the book and asking questions at the same time. It was often at the beginning that a lot of basic mathematical knowledge needed to be reconstructed. Once the construction was completed, he flipped through the tome as fast as a banknote counting machine.

In the blink of an eye, three hours passed. Xu Yi finished reading more than ten tomes in a row. He also flipped through the remaining books, because they were not challenging and not worthy of his study.

Suddenly, Xu Yi thought of the library. There were so many tomes there, which condensed the crystallization of human wisdom in this world. Looking at the oily middle-aged man again, he suddenly felt that this man was a little unsuitable. If he could tie Qiu Chengtong and Terence Tao would be great, but unfortunately I don't have enough time, so I plan to tie up an old professor first.

"Dude, who is the top guy in the math department in our school?"

Xu Yi stared at the oily middle-aged man and asked.

The oily middle-aged man rolled his eyes and understood what this man was planning. He wished that Xu Yi could find someone else. As for what happened to others, he really couldn't control it. The scene in front of him was too terrifying. The worst he could do was escape. , just call the police on behalf of the old professor.

The oily middle-aged man was about to speak when the clouds in the sky outside suddenly tilted, and countless screams were heard. Xu Yi suddenly pulled the door open, and the sun suddenly hit the ground from the sky, and screams broke out.

At this moment, a sharp handprint came, and Xu Yi had no room to dodge. Being hit by the big handprint, his consciousness suddenly fell into darkness.

"Wake up, wake up, finally wake up..."

"The morning is like blue silk and the evening is like snow, thinking hard is so painful."

"The Qi is weakening, and if it is broken, it may cost nearly a hundred years of life."

"Mr. Xu, are you okay..."

"…………"

After all the chaotic noises reached his ears, Xu Yi opened his eyes and felt that his body was extremely heavy.

A few strands of silver hair covered it. He stretched out his hand to grab the hair. He was shocked at first by his hand with bulging muscles, full of ravines and chicken skin.

He took out a mirror. In the mirror, he was as skinny as firewood, with ravines all over his face and swaying black hair. He looked older than a centenarian among ordinary people.