I arrived at Tokai City.

The students had a big meal and went back to the dormitory to sleep.

Hungry, tired, and sleepy, I don't want to have a second experience.

Military training, three days to end!

Unexpectedly, the instructor gave everyone a day off.

The next day, the phalanx drilled.

The third day of the military parade!

Farewell instructors!

Military!

It's over!

In the afternoon, many students were going to have dinner and carnival outside the school.

As a result, the two classmates of the Ninth Company felt that the weather was too hot, and begged for rain at noon, and in the afternoon, the rain poured down, ruining everyone's plan.

"I'll go, it's these two who beg for rain again!"

"Don't let them go!"

"Kill you!"

......

Xu Feng returned to the apartment dormitory with the book in his hand.

Zhuge Xun, Di Yuanshuo, and Mi Gang were full of energy to discuss something.

Xu Feng put down the book, opened the umbrella, dried it on the balcony, and returned to the living room to sit down.

"Xu Feng, thanks to you these past few days!"

Zhuge Xun looked at Xu Feng's backpack and didn't understand how a small schoolbag could hold so much food.

"yes, if it weren't for your water and biscuits, we don't know how miserable. ”

Di Yuanshuo still remembers that he went fishing, but the fish was not caught, and he was almost bitten by a poisonous snake that came out, and he still has palpitations.

"I can't do anything else, just write, and when I am needed, Xu Feng, don't be polite. ”

Mi Gang's height of 1.8 meters is very rough, which is in great contrast with the unique scholarly introverted temperament.

"You're welcome. ”

Xu Feng smiled and looked at the heavy rain outside.

There has been no aura in the recent rainstorms, and this time too.

After chatting with the three of them for a while, Xu Feng returned to his room, took out the advanced mathematics he had just borrowed from the library from his schoolbag and began to study.

The first chapter is Functions, Limits, and Continuities, which, in addition to the new concepts, are very relevant to the mathematics learned in high school.

Of course, if these concepts are not understood, higher mathematics becomes a book from heaven.

It has nothing to do with high school math.

The future will be dark.

Xu Feng took a moment to understand these concepts thoroughly, and then moved on to the second chapter of unary function calculus.

The content of this chapter is also mainly conceptual learning, and many problems can be easily solved by memorizing the median value theorem and Lobida's law.

After only finishing the two chapters, Xu Feng found that it was already dark outside.

Higher mathematics and secondary mathematics are not the same concept at all.

The former can be applied directly after understanding, but in advanced mathematics, there is no professional question bank training, even if you memorize it, you will inevitably feel that you are not at your disposal.

Feel free to have some dinner.

Xu Feng turned on the computer, logged in to the online bookstore, and purchased some advanced mathematics problem sets.

The courier came very quickly, and it was delivered to the school gate the next morning.

"Xu Feng, your class is sending out new books so soon?"

"No, these were purchased online. ”

"What kind of book did you buy online?"

Zhuge Xun came over to take a look, how to say it, a little dizzy.

As early as high school, he had heard about the name of advanced mathematics, and now these are not only advanced mathematics, but also exercise sets, which is very scary......

"Xu Feng, I remember that we studied biology, right?"

"yes. ”

"But I've found that if you don't learn advanced mathematics well, some biology-related studies can be very troublesome. ”

"You have a point. ”

Zhuge Xun was a little untenable.

"You can also prepare in advance. ”

"Xu Feng, I just remembered that Mi Gang had something to do with me, so I went first. ”

Afternoon.

Classrooms in the complex building gather to distribute new books.

The head teacher, Zhou Zhen, talked about the class schedule, course selection and other matters.

"Freshman year is the most important year, and it is also a year related to future academic achievements, I hope you can show the enthusiasm of the college entrance examination and lay a good foundation for your future. ”

The class meeting was disbanded.

Xu Feng took the book back to the apartment.

The streets of the canteen commercial area are lined with advertisements for new recruits from major associations.

"Donghai Piano Club is recruiting, and outstanding members have the opportunity to participate in national concerts!"

"The chess club recruits people, thinks about the seven dangers, points to the nine palaces, the eight extremes of the fugue, the vertical and horizontal ten directions, handsome, just one word!"

"Do you want to become a powerful warrior? Do you want to go on an extraterrestrial adventure? Join the Martial Arts Society, become a powerful warrior, and fulfill all your wishes!"

"Taekwondo accepts people, the first in Donghai City!"

"Judo accepts people, Tunghai University is the first, there is no second!"

"The East China Sea Sword Lu collects people, a sword in hand, sweeping the world of arrogance, the first in this street!"

The kendo club is very arrogant, which makes the three major clubs of taekwondo, judo, and martial arts, which have never been dealt with unprecedentedly united, and wants to overturn the sword reed in the East China Sea.

However, the East China Sea sword reed is not easy to mess with.

Lord Lu Mengyun personally sat in charge of recruiting new people, so that the three societies next to him did not dare to act rashly.

This is a cold girl, with a long double ponytail, heart-shaped bangs, and cold eyes that make people feel awe-inspiring and dare not approach.

She only needs to sit in charge, and the recruitment of new students is in charge of a few classmates next to her.

When Xu Feng passed by, Mengyun opened his eyes!

"This freshman is unusual. ”

Meng Yunyan stared at Xu Feng.

Xu Feng turned sideways, smiled, and continued to pass by.

"Classmate, freshman, do you want to join us in taekwondo?"

The recruit senior of the Taekwondo Club came over and asked.

This new student can be noticed by Dream Cloud Annihilation.

Gotta be the first to start!

"Thanks, not interested. ”

"Classmates, our judo club...... Forehead ......"

The senior of the judo club came over to say hello, but when he saw Xu Feng clearly, he was embarrassed.

Xu Feng glanced at the new advertisement behind him.

There are photos of acquaintances in the advertisement.

A faint smile.

"Something?"

"It's okay, it's okay. ”

"Classmate, how about coming to our martial arts club?"

"Martial Arts Society?"

"That's right, you look at the introduction of our East China Sea Martial Arts Society, just last year, a senior landed on Mars and became the leader of the hero platoon in the sixth war zone!"

"Not bad. ”

"Classmate, how is it, do you want to join?"

"I'm not available, forget it. ”

"Ah, how can I not be free, my freshman year has the most time. ”

"I need to learn. ”

"Studying?"

"Well, for example, in advanced mathematics, by the way, I have a good friend question here, about the application of the law of Lopida, and the topic is like this...... If you can figure it out, I'll join. ”

"Ah, hahaha, junior, you're kidding, as a senior, how can you ...... I don't know ......."

"Okay, goodbye. ”

Xu Feng waved his hand and walked towards the apartment.

"If I can help you solve the problem, would you like to join the kendo club?"

Meng Yunyan walked over and said calmly.

"Yes, it's just a nominal kendo club, and you won't participate in daily activities, okay?"

"Okay. The problem you just talked about, using Lopida to solve the problem will lead to a dead end, and the appropriate one should be Taylor's formula......"

Xu Feng listened carefully.

On the side, the new recruit seniors of kendo looked dull.

The recruits of the four clubs of martial arts, taekwondo, and judo looked confused.

Is this really a new kendo club recruitment, not a math club recruitment?

I see.

"What other questions do you have?"

"Nope. ”

"This is the kendo club registration form, you fill in your name, student number, major, and contact information. ”

"Good!"

Xu Feng filled them in one by one, and just joined the kendo club.

Hey?

When returning the form, Xu Feng saw Lin Xiao and Li Wenwen from the list.

"Alright, I'm leaving. ”

"Goodbye. ”

Mengyun returned to his seat, returning to his cold state.

The rest of the recruits from the three societies looked at Xu Feng's departing back with a sad and indignant expression.

When do you need to learn advanced mathematics to recruit new students?

"Judo, what did you just say halfway through?"

"It's nothing, it just doesn't feel right. ”

Judo club's suffering said.

This time, the foreign aid guide of the judo club is Jihiko Yanagiyu......