"Hey. Cheng Nuo answered the phone. "Teacher, are you looking for me?"

"Cheng Nuo, you're still in school, aren't you?" Liao Zhixing's laughing voice came from the other side of the phone.

Cheng Nuo nodded, "Yes, I'm in the school dormitory." ”

"Well, if you don't make arrangements this morning, come to my office at eight o'clock, and I'll look for you. Liao Zhixing said on the other side of the phone.

"Uh...... There are currently no arrangements for this morning. Cheng Nuo was stunned for a moment, "But, teacher, can you reveal what is going on?"

"You'll know when the time comes. Liao Zhixing smiled mysteriously, "By the way, I forgot to tell you, you know my office, it's 203 in Building 8, don't be late." ”

After speaking, Liao Zhixing hung up the phone.

Cheng Nuo, who was confused, shrugged his shoulders, and Cheng Nuo, who couldn't figure out what Liao Zhixing was looking for, hurried up to wash and brush his teeth and went to the cafeteria for breakfast.

"Seven-fifty, it's too late. Cheng Nuo, who walked out of the cafeteria, rode a shared bicycle on campus to the downstairs of Building 8.

Building No. 8 is a dedicated building for the Faculty of Mathematics. The offices of the teachers of the School of Mathematics are basically in this building.

Walking up to the second floor, Cheng Nuo knocked on the door gently.

Knock knock!

"Please come in!" came Liao Zhixing's voice from inside the door.

Cheng Nuo pushed the door and entered. found that Liao Zhixing was not alone in the office at this time.

In addition to Liao's trip, there are three boys. Looking at his age, he is a little older than Cheng Nuo. It should be a senior in the upper class. He was sitting at a long conference table.

Liao Zhixing saw Cheng Nuo coming in, smiled at Cheng Nuo and nodded, pointed to a chair and said, "Here, let's sit over there first,"

Cheng Nuo, who was still confused, came to the conference table in a daze and sat next to a senior with black-rimmed glasses.

At the moment of sitting down, Cheng Nuo felt the scrutinizing gaze of the three seniors at the same time.

This made Cheng Nuo's heart furious.

What is this doing, Comrade Liao? Is it going to ...... Blind date?!

"Alright, now that everyone is here, let's get down to business. ”

Liao Zhixing sat on the main seat, crossed his fingers, looked at the four of them, and said with a smile.

"First of all, let me introduce you three to this new junior. ”

Cheng Nuo, a 2020 freshman in the Department of Finance, School of Management and Economics. ”

"Cheng Nuo, these three are all my students. The one next to you is called Jiang Shuobo, and the two taller ones opposite are Wang Jiji, and the shorter one is Zhuang Poxiao. Jiang Shuobo is a senior, and Wang Genji and Zhuang Poxiao are both juniors. ”

Cheng Nuo waved his hand and said hello, "Hello, senior." ”

No one responded.

The atmosphere was visibly awkward for four or five seconds.

"Teacher, you say...... He's a freshman?!, and he's not in our math department?!" In the end, Senior Wang Jiji broke the awkward atmosphere, and his tone was inquisitive.

Jiang Shuobo and Zhuang Poxiao also looked at Liao Zhixing with puzzled eyes.

Cheng Nuo is a freshman, so forget it. It is the right for them to be the old driver seniors in the senior year, and bring the new students to increase their knowledge.

But Cheng Nuo was not a freshman in their mathematics department, but a finance department that couldn't be beaten.

This made the three of them very puzzled by Liao's actions.

Regarding the doubts of the three of them, Liao Zhixing nodded with a smile undeniably, "Yes, Cheng Nuo is indeed a student of the Department of Finance, but he is indeed very passionate about mathematics." And he's very talented at it. So I'm going to put him in your group and let him work out. ”

"But teacher, this ......" Wang Genji looked pained.

The three seniors of the mathematics department went to take a freshman from the finance department to exercise his mathematical thinking.

Why does this matter hurt more and more when you think about it?!

"What, is there a problem?" Liao Zhixing glanced at Wang Genji lightly.

Wang Genji shrank his neck and waved his hand again and again, "No, no, of course there is no opinion." ”

"Mentor juniors and promote common development. It's our duty as seniors. Wang Genji patted his chest.

Why are you a junior?

Guidance is guidance. It's good to be a school girl!

"What's that......" Cheng Nuo raised his hand weakly at this time, "Teacher, senior, I want to ask, what are you calling me here for?"

Cheng Nuo is still very confused.

inexplicably received a call from Liao Zhixing, and then was inexplicably called here, listened to a bunch of inexplicable conversations, and met three inexplicable seniors. Then, he still looked inexplicable.

"Then I'll give you a good explanation. Liao Zhixing smiled and spoke.

"I have a project in my hand now, which can be regarded as a key scientific research project of a university. I only got this project at the beginning of this year, and at present, it is mainly the three of them doing it. ”

"However, the workload of this project is a bit large, and if the three of them do it alone, I am afraid it will be difficult to finish it before the end of the year. So I wanted to find someone else to help them. ”

"So, teacher, you found me?" Cheng Nuo pointed to his nose and smiled wryly.

"That's right. Liao Zhixing nodded heavily, with a smile on the corner of his mouth, "Although Cheng Nuo, you are only a freshman, and you don't have enough professional knowledge." Truth be told, though, in terms of talent, you're a lot higher than your three seniors. ”

Three seniors sitting on the side: "......"

Teacher, we are your own students!

Even if you want to praise Cheng Nuo, you don't have to mock us by the way.

"So?" Cheng Nuo raised his eyebrows.

Liao Zhixing spoke, "So, I just want you to join this research group." Together with your three seniors, try to get this project done before this semester explains!"

"What if it can't be done?" asked Cheng Nuo.

"Then......" Liao Zhixing said quietly, "Winter vacation, you should be prepared to stay in school." ”

It's October, October 5th to be exact.

The end of the first semester is around the end of January of the following year.

That is, they have less than four months.

Four months to study a project is quite short and concise for a project that is casually measured in years.

"Of course, I'll work with you on this project as well. However, as you know, I have more than one project in my hands. This one is the least difficult. So, the main force of this project is still the four of you. ”

As a veteran professor of Tsinghua School of Mathematics, Liao Zhixing must have more than one project in his hands. Depending on the difficulty of the study, the amount of time invested will naturally vary.

Therefore, the current project of the four people is relatively difficult. Liao's trip is only to provide a general research plan. As for the specific details, it still depends on the four of Cheng Nuo.

"So, after talking about it for so long, what is the title of that project?" asked Cheng Nuo slowly.

Liao Zhixing said, "Pretreatment Method for Joint Compact Difference Separation Equations of Two-Dimensional Helmholtz Equations"