At this moment, Liu Fang is in the library of Kaijiang University, looking for books on mathematics. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

After sneaking back to campus, Liu Fang lowered the brim of his hat and slipped into the stairwell of a building. He felt that this place was out of the ordinary, and that Sophie could not find it.

Although the holiday has been over, there are still some students in the school who have not gone home, some to save travel expenses, some do not want to go home to be disciplined by their parents, and some people want to take advantage of the summer vacation to recharge themselves and make up for their shortcomings.

After Liu Fang slipped into the building, he found that the corridor was empty, he walked forward cautiously, and walked around a corner, Liu Fang saw a sign hanging on the door frame in front of him, and the word library was written on the sign.

Liu Fang immediately became interested, he walked up to him and looked inside a few times, only to see a few college students sitting in the library. There was a table at the door, but there was no one in front of it, and it was not known what the caretaker was doing.

Liu Fang hesitated for a moment, and then walked into the library lightly. Several college students were reading carefully, and no one noticed him.

Liu Fang walked to the bookshelf and began to search for it. It didn't take long for Liu Fang's eyes to light up, and he reached out to pick up a book, and the cover was printed with four bold characters of "Advanced Mathematics".

Because he was worried that the administrator would check his documents when he came back, Liu Fang didn't dare to sit at the table outside and read, so he sat down in the innermost corner of the bookshelf and looked through it secretly.

Not long after reading it, Liu Fang suddenly said to himself: "It turns out that this is called calculus!" If I had read this book earlier, I wouldn't have had to work so hard to figure out the math formulas myself! ”

Although Liu Fang's voice was not too loud, it was a little abrupt in the library where the needle could be heard, and several college students turned their heads to look, and one of them couldn't help but remind: "The classmate inside, please pay attention to it, don't affect other people." ”

Liu Fang hurriedly apologized: "I'm sorry, I'm sorry, I was a little out of shape just now, you continue to watch, I promise not to speak loudly again." ”

Several people turned their heads back when they heard this, Liu breathed a sigh of relief, and then he frowned, revealing a bitter gourd face, the more he looked back, the more ugly Liu Fang's face became, and from time to time he would silently pat the ground a few times, venting his dissatisfaction.

Liu relieved and said: Liu Fang, Liu Fang, you are so self-righteous! It's a shame that you used to spend so much effort to deduce mathematical formulas, and you were still complacent about it, and I felt a sense of accomplishment, but I didn't expect that what you calculated had already been bound into a book and printed, and you were purely wasting your efforts!

Liu Fang had only read high school level books at the highest level, and when he was idle and had nothing to do, he made his own decisions, and deduced more advanced mathematical formulas according to the content of his self-study, which he did as a thing, and did it for several months.

This was not an easy thing to do, and it made him so tired at the time, but now that he saw advanced mathematics, he realized that he was really stupid and wasted so many brain cells in vain.

Liu Fang thought of this and looked at the bookshelf, only to see that there were many mathematics books on it, such as "Analysis of Ordinary Differential Equations", "Analysis of Space Geometry", "Introduction to Linear Algebra", "Theory of Functions" and so on.

He thought to himself: I wonder if Sophie will be looking around for news about me in the past few days, and I can't do business anymore, in this case, I might as well come here every day to read books, so that I can avoid Sophie and increase my knowledge, which can be regarded as killing two birds with one stone.

In the next few hours, Liu Fang flipped through a lot of math books, and just as he was fascinated, a woman's voice sounded: "Ladies and gentlemen, the opening time of the library has ended today, please put the books back in their places and come back tomorrow." ”

It's only eight o'clock now, and the school's library used to close at half past nine in the evening, but now it's summer vacation, and there aren't many people who come to see the books, so the school has shortened its opening hours.

The others got up to return the book after hearing the administrator's words, but only Liu Fang in the corner turned a deaf ear to this.

Soon, the college students were gone, and the caretaker picked up the mop and started cleaning.

When she swept to the bookshelf, she found that there was still a person sitting inside, she was not mentally prepared, she was so frightened that she screamed, and the mop in her hand fell to the ground.

Liu Fang was also frightened, he jumped up all of a sudden, and looked over with a panicked face.

"Y-Why are you hiding here?"

The administrator looked to be about thirty years old, and when she saw that Liu Da was still wearing a hat at night, she immediately showed a vigilant look, depending on the situation, as long as Liu Fang couldn't give a satisfactory answer, she would immediately call for support.

Liu Fang hurriedly explained: "Auntie, I was fascinated by reading a book just now, I didn't pay attention to the time, I'm really sorry to scare you." ”

Seeing that Liu Fang was short in stature and didn't look like a college student, the administrator couldn't help but ask, "Are you a student of Kaijiang University?" ”

Liu Fang still wanted to continue to come here to rub books, of course he couldn't show it, he raised the book he was holding in his hand: "Of course I'm a student of Kaijiang University, otherwise how can I understand such a profound book?" ”

The librarians in the university are generally knowledgeable, and when the administrator saw that Liu Fang was holding a copy of "Topology", he finally nodded: "Oh, it's not early, you should get out of here quickly." ”

Liu Fang put the book on the shelf, said hello to people very politely, and then walked out.

The caretaker continued to clean up, and not long after, a tall, thin man with glasses hurriedly walked over, and he found that the door to the library was open, and he couldn't help but breathe a sigh of relief: "It's good that I caught up." ”

The administrator didn't even raise his head when he heard the voice, so he smiled and said, "Teacher Li, I knew you would definitely come, so I pinched you some." ”

Teacher Li walked into the library and said apologetically, "Sister Wang, I'm really sorry to delay your time every day because of me." ”

Sister Wang teased: "What did Mr. Li say? Who doesn't know that you are the best math teacher at Kaijiang University? I heard that you will be promoted to the deputy head of the mathematics department after the start of the semester, so don't forget to treat yourself when the time comes. ”

Teacher Li smiled and nodded: "Cheng, I will definitely invite you when the time comes." ”

Mr. Li walked to the mathematics bookshelf as he spoke, put the two books in his hand on them, and then took down another book from it. Has the book been read? Who else would read such an esoteric book but me? ”