Omnipotent Data

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Do you think Xueba is really happy?

Yes, you can never imagine the happiness of being a top student!

——Excerpt from

On the seventh day of National Day, college students return to school one after another. Fastest update┏Ⅹ④③⑨⑨┛

On the campus of Tsinghua University, the vitality and vitality of the past have been restored.

Cheng Nuo continued to carry a stack of books on his back, and came to the original location of Qingyu Internet Cafe early to start his day's work.

Tired is a little tired, suffering is a little bit bitter.

But, that pretentious feeling is really so cool!

Yesterday, Cheng Nuo constructed the discrete one-dimensional Helmholtz equation in ccd format.

Next comes the more complex and difficult stage of deriving from one dimension to two dimensions.

Cheng Nuo sat in front of the computer, frowning tightly, while turning the pen, he kept searching for the solution steps in his mind.

Huge data streams are constantly converging and colliding in my mind.

After sitting for half an hour

"Yes!"

Cheng Nuo immediately straightened his body, tapped the keyboard with his fingers, and wrote down his inspiration.

"From one-dimensional to two-dimensional, that is, to convert a single x-axis coordinate into x, y plane coordinates. Then, after constructing the two-dimensional helmholtz equation of the dirichlet boundary condition, divide the definition domain into equidistant networks, Get n^2 grid points”

"(xi, yi) = ((i-1h, (j-1)h),"

In my mind, thoughts are flying.

This problem is like a shy woman waiting to be fucked, as long as she unbuttons her first button, the rest will come naturally!

clap clap clap

Cheng Nuo tried his best to conquer her with both hands.

On the forehead, I don't know when it was covered with sweat. But Cheng Nuo didn't intend to stop,

still in

Clap clap!

It's the sound of fingers tapping on a keyboard.

at dusk.

Cheng Nuo spent another full day in the Internet cafe before dragging his exhausted body back to the dormitory.

For academic things, neither Ouhuang nor krypton gold will work.

Only bursting the liver is the kingly way!

I don't know so many academic masters in ancient and modern China and foreign countries, all of whom have gray hair early.

Two days in a row, the body of Cheng Nuo, an ordinary person, was almost unable to hold on.

After returning to the dormitory and drinking a bottle of Kidney Treasure, Cheng Nuo climbed into bed, closed his eyes, and recuperated.

Classes will resume tomorrow, and Cheng Nuo must adjust his state and devote himself to the great and arduous cause of learning with full enthusiasm.

As for the subject

Cheng Nuo would also spare time to continue studying.

After two days of hard work, Cheng Nuo had completed about 50% of the first part of the subject he was in charge of.

The rest, it is estimated that more than a week can be done.

The next day, Cheng Nuo sat in the classroom, boredly stopping what a middle-aged professor was speaking on the podium.

Advanced Mathematics is one of several public courses taken in the first semester of their Finance Department.

Although this course is not the easiest among all the mathematics courses in the university, it is the most basic course.

Almost all engineering majors must take this course.

As I said before, this course has been rumored in Jianghu for a long time. Everyone's face changed.

But for Cheng Nuo

so easy!

Cheng Nuo, who had already taken the professional courses of the Department of Mathematics, was really not interested in pediatrics such as advanced mathematics.

It seems that he should discuss with the tutor whether he can attend the advanced mathematics course in the future.

Anyway, he can learn all kinds of knowledge in middle school.

Advanced mathematics includes: limit theory, one-variable differential and integral, arc differential, multivariate differential and integral, elementary ordinary differential equations, series, spatial analytic geometry, vector algebra, etc.

Mathematical analysis includes: real number theory, limit theory, unary differential and integral, multivariate differential and integral, series, etc.

The content is almost the same.

It's just that one focuses on calculations, and the other focuses on theoretical proofs. And the depth of mathematical analysis is even deeper.

Cheng Nuo, who was really bored, yawned, put on his earphones, and continued to fill in the calculation formulas and steps of the topic on the draft paper while listening to the music.

The high math teacher who was lecturing on the podium naturally noticed Cheng Nuo's actions.

He stepped off the podium, moved to Cheng Nuo's side, and tapped lightly on his desk.

Boom!

Cheng Nuo turned his head and was jumped by the high math teacher standing beside him. Trembling, he took off his earphones.

"What's your name?"

"Cheng Chengnuo."

"Okay, Cheng Nuo, right? Since you didn't listen carefully in class, I'll give you 30 seconds to solve the problem on the podium."

Cheng Nuo looked up at the blackboard.

Sure enough, a topic was written on the top of the blackboard:

"Assuming that the polar coordinate equation of curve c is r=a^3, find the full length of curve c?"

Cheng Nuo frowned slightly.

Teacher, is your purpose of asking this question to insult your IQ?

Seeing Cheng Nuo's frown, the high math teacher thought that Cheng Nuo was afraid, so he continued, "I don't want to embarrass you, I just want the result, not the steps. Let's start time."

"3/2aπ."

High mathematics teacher: "???"

Before the high math teacher could say the word "beginning", Cheng Nuo abruptly stuffed it into his mouth.

Such a fast speed!

To be honest, Cheng Nuo's answering speed was beyond the expectation of the high math teacher.

Although the topic is simple, it will take at least three seconds for him to do it himself.

But this man, Cheng Nuo, only took less than a second!

So scary!

The high math teacher had to look at Cheng Nuo with admiration.

"Ring ring ring"

The get out of class bell rings.

Cheng Nuo was packing his schoolbag while looking at the mathematics department's class schedule for this afternoon.

There is a section of Gaodai in May and Sixth Festival, and there is a section of Jieji in July and Eighth Festival.

Hey, the tragedy is like mine, and it's another day full of classes.

While Cheng Nuo was looking at himself and feeling sorry for himself, a graceful figure appeared in front of Cheng Nuo.

"Student Cheng Nuo, can I discuss something with you?"

It was Yan Yunqing who spoke.

Oh, by the way, he is the current monitor of Cheng Nuo's class. The top spot in the class committee!

"Yes, please speak."

Cheng Nuo was so happy to chat with the beauty.

Yan Yunqing looked capable, "That's it. The Mid-Autumn Festival is coming soon. Our college is going to hold a Mid-Autumn Festival party. The requirement is that each class must submit two programs."

"I can apply for a program here, but there is still one short. Student Cheng Nuo, I heard that you sing well. Why don't you apply for a program too?"

Mid-Autumn Party?

Cheng Nuo really didn't know about the mid-autumn festival party.

"Me?" Cheng Nuo pointed to himself.

"Yes!" Yan Yunqing nodded with a smile on his face, "Cheng Nuo, as a class committee member, you should play an exemplary role. Only in this way will your image among your classmates grow."

"Besides, there are rewards for participating in this party?" Yan Yunqing smiled mysteriously.

Cheng Nuo's eyes lit up, "Reward? Is it a credit?"

Yan Yunqing shook his head with a smile, and raised a finger, "No, it's a bag of mooncakes."

Cheng Nuo: ""

Finally, under Yan Yunqing's persuasion, Cheng Nuo finally agreed to perform on stage. However, there are conditions.

"However, I need an instrument to accompany me to perform on stage. To make the performance perfect. If you can borrow it for me, I will agree to play."

Yan Yunqing said, "No problem, tell me, what kind of musical instrument it is, I'll borrow it from my seniors and sisters."

Cheng Nuo spit out two words: "Erhu."