From the moment he walked into the class in the morning, except for going to the toilet, Luo Xiu always sat in his seat and taught himself mathematics, which made him incompatible with the classmates around him and lived like an outlier.

At first, his classmates were still interested in him, but seeing that Luo Xiu was indifferent to the comments of others, everyone speculated that he was suffering from post-traumatic stress response syndrome and began to stay away from him.

Only Kanye, Rosho's neighbor, an enthusiastic black guy, never left him, always sitting next to him and chattering.

"Hey! Lao Tie, what's wrong with you? I know it's sad that your house has blown up and your parents are dead, but you can't keep staggering. Listen to Lao Tie, I've been looking for you since your accident, but I heard that you were taken away by the people of S.H.I.E.L.D., and they didn't do anything to you, right? Hey, Lao Tie, please take a look at me! What do you have downloaded on your computer? Oh! Calculus? Come on! What the hell is this?! ”

Kanye gushed as soon as he opened his mouth, and the racial talent of the black man gave him a natural rhythm when he spoke.

Luo Xiu knew that he was worried about himself, put down the pen in his hand, and patted his friend's shoulder with a smile.

"Kanye, buddy, don't worry, I'm fine, I'm normal, and I'm not overly sad."

Kanye's face collapsed: "Oh, please! You've started downloading all these ghost talismans on the internet and it looks like it's endless, and you say you're normal? If it's normal for you to do this, then psychologists all over the world are going to be out of work. ”

Luo Xiu shook his head and said, "No, I just suddenly figured it out and wanted to change my life, you know buddy, I crave knowledge!" ”

"What do you crave?" Kanye stared at his big black eyes and asked in disbelief, "You crave knowledge?" Please, I must have heard it wrong, pretty girl, Lego, Ice Fall, The Legend of Zelda...... There are so many wonderful things in this world, you actually say that you are hungry for knowledge?! ”

Luo Xiu looked at Kanye with a firm gaze: "Yes, Kanye, I am hungry for knowledge. ”

Kanye shook his head helplessly: "No, Lao Tie, you are just overly sad." Do you know? I understand what to do with your situation, I'll throw a party on the weekend with a couple of pretty girls, and you'll be back to normal in no time as soon as you see them, I bet you will. ”

Speaking of which, Kanye glanced at Luo Xiu's laptop with disgust: "And this damn calculus, I can guarantee that as long as you put your arms around the girl's waist, you will immediately throw this damn thing out of the clouds." ”

Luo Xiu smiled lightly: "I'm afraid that this will not be the case then." ”

As soon as the words fell, the class bell rang, Kanye patted Luo Xiu's shoulder and returned to his seat.

This is Mr. Smith's class, and the content is mathematics.

For Luo Xiu, the high school math curriculum was too simple, and Mr. Smith mainly taught probability, geometry, and elementary algebra, which Luo Xiu knew well.

In addition, the efficiency of traditional teaching methods is not high, and the efficiency of word of mouth is lower than that of acquiring knowledge through direct reading, not to mention that teachers often need to teach knowledge with the overall rhythm of the class.

Zhenxueba never listens to lectures, but uses the time in class to study on his own, so that he can absorb knowledge more efficiently.

So even though Mr. Smith was standing on the podium, Rosho still lowered his head and held his notebook to study calculus.

[Mathematics - Mathematical Analysis - Experience +2]

[Mathematics - Mathematical Analysis - Experience +2]

……

Soon, though, Mr. Smith discovered the disobedient student.

Although many students in the class were disobedient, there were a few students who openly scribbled with their notebooks in class.

Mr. Smith quietly looked at Rosho as he paced to his side.

At this time, Luo Xian was immersed in the world of mathematics and couldn't extricate himself, and the ballpoint pen in his hand shook rapidly.

Mr. Smith looked down and saw that Rosho seemed to be teaching himself math.

"Why do you teach yourself math in my class, is this questioning my level of teaching?"

His brow furrowed, anger rising to his chest.

Just as he was about to teach this impudent boy a lesson, Mr. Smith's pupils shrank suddenly.

What catches your eye is a complex formula: f(x)=a_0+∑_(n=1)^∞▒(a_n cos『nπx/L』+b_n sin『nπx/L))

Fourier series!

Mr. Smith vaguely remembered this formula, but his impression was blurred, and at the same time, he was terrified: "This kid is actually under my nose, studying a formula that I can't even understand!" ”

Annoyed and angry, Mr. Smith put away the hand that was about to knock on Luo Xiu's desk, and said in his heart that he couldn't be provoked.

After years of teaching in middle school, he had completely forgotten what advanced mathematics looked like, calculus was not within the scope of ordinary high school teaching, and it was not even an exaggeration to say that many people in this school had never heard of the word "calculus" at all.

And just as Mr. Smith was dying, Rosho raised his head.

Mr. Smith's body smell is too strong, and he has brought Rochew, who is immersed in the world of mathematics, back to reality.

Looking up at Mr. Smith, Luo Xiu smiled politely: "Mr. Smith, I have a question, now that I have come up with the Fourier series of a function with a period of 2L, how do I convert it into a Fourier series of a function with a period of 2π?" ”

Mr. Smith smiled awkwardly, this question is out of the ordinary.

Not to mention students in ordinary high schools, even students in pre-university classes have not learned the level of knowledge of Fourier series.

After thinking about it again, where is this kid asking me questions, this is giving me a dismount.

The classmate next to him looked at Luo Xiu blankly.

What he just said...... Is it really English?

Silent.

There was a long silence.

After the silence, Mr. Smith was in a hurry and took out the laptop that Luo Xiu had pressed under his school bag.

"Oh, Xiu, the knowledge I can impart to you is limited after all, but fortunately, this is the information age, and the answers you want can be found through the Internet."

After speaking, he patted Luo Xiu on the shoulder and fled.

In the future, this student can do whatever he wants, he doesn't dare to mess with it.

Luo Xiu was not surprised by Mr. Smith's answer, he had not intended to get the answer he wanted from Mr. Smith's mouth, what he wanted was the exemption from self-study in class, and that was it.

Lowering his head, Luo Xiu was immersed in the ocean of knowledge again.

[Mathematics - Mathematical Analysis - Experience +2]

[Mathematics - Mathematical Analysis - Experience +2]

[Math - Mathematical Analysis - Experience +4!] Congratulations, trigger a critical hit! 】

……