I Just Want to Be a Quiet Top Student

Shen Qi quickly flipped through the Gaodai test paper in his hand, which was actually more like a Gaodai exercise set.

According to the preliminary judgment, these 36 questions are by no means the exercises in the advanced textbooks, or the exercises with comparable difficulty.

If it was the exercises in advanced textbooks, Shen Qi could solve 36 questions within 3 hours.

But now, the situation is not optimistic.

Time was tight and tasks were heavy, so Shen Qi bid farewell to Director Long and Sun Erxiong, and left in stride.

"It's good to let Shen Qi complete the credits earlier. Mathematics is a subject that relies on talent to make a living. If you can't get grades before the age of 30, it will be difficult in this life." Director Long said earnestly, "Shen Qi earlier After completing the credits, let’s set the direction earlier.”

"I know Shen Qi quite well. I brought him to the Golden Autumn Camp last year. I think it will work." Sun Erxiong agreed, and then said: "However, the credits of our mathematics department are not free. If you take them in advance, you have to Take it for real."

"These 36 questions are difficult. We are at the same level in the postgraduate entrance examination of the Mathematics Institute, right?" Director Long said unbearably, "It's hard for this young man."

Sun Erxiong replied: "The postgraduate entrance examination is a closed book, but Shen Qi is an open book."

"Is there a difference between opening and closing a book?" Director Long smiled.

"Actually, there is no difference." Sun Erxiong also smiled.

Director Long suddenly thought of a question: "Xiao Sun, maybe I'm thinking too much, you think Shen Qi can really solve 36 questions by himself?"

Sun Erxiong understood Director Long's meaning, Shen Qi might hire a gunman.

According to the test rules formulated by Director Long and Sun Erxiong, Shen Qi can look up any information within 48 hours, regardless of where to answer the questions. Anyway, at this time the day after tomorrow, Shen Qi can just return the test paper.

This means that Shen Qi can ask anyone for advice, and even ask someone to help him complete the test paper.

The first-year freshmen will certainly not be able to help Shen Qi, but among the second-, third-, and fourth-year students of the School of Mathematics, there are masters, graduate students, and doctoral students.

"I'm sure, Shen Qi won't ask anyone for help, he will complete this test alone." Sun Erxiong said.

"Oh, to be honest, he is an honest boy." Director Long nodded, expressing his relief.

"Honesty is one aspect. The most important thing is that he has to perform this show by himself and ask someone to help him. He can't afford to lose face."

"Oh, save face."

...

Shen Qi came to the library non-stop, and finished the questions he had asked, with tears in his eyes.

For the next two weekends, he had no rest.

Regardless of whether it is useful or not, Shen Qi borrowed a bunch of books, such as "Matrix Theory", "Linear Expansion Theory", "Euclidean Space Analysis" and so on.

Arranged, these reference documents can go around the earth...Of course they can't go around the world, but they are nearly one person tall. Shen Qi divided the materials into several piles and placed them on the desktop in the self-study area of ​​the library to occupy a place.

Before starting the battle, Shen Qi had to do one important thing first, to fill his stomach.

Half a catty of beef, a pot of boiled water, done.

Shen Qi went back to the library to solve the problem.

A simple summary of advanced algebra is the general term for the development of algebra to an advanced stage. The low-degree equations we learned in middle school belong to elementary algebra, which is the most basic enlightenment chapter of algebra.

Advanced substitute courses set up in modern universities usually include two branches at the undergraduate level: linear algebra and polynomial algebra.

Line algebra and polynomials are simple and easy to say, but also difficult to say, you can see the scale of the questioner.

Obviously, the test paper in front of Shen Qi was quite difficult.

The first question involves Grassmann's expansion calculus.

Grassmann was an odd man. He studied theology at the University of Berlin and was self-taught as a mathematician.

In fact, Grassmann's expansion theory was drafted earlier than Hamilton's quaternion.

But because Glassman, who has a theological background, exaggerated the teachings he advocated in his mathematical works, which cast a layer of mystery on mathematics, so he was disgusted by colleagues and readers.

Well, the "Linear Expansion Theory" that Shen Qi borrowed is actually a Chinese adaptation of Grassmann's Theory of Expansion. The religious color of this book has been removed, and new theories of the 20th and 21st centuries have been added.

"This product is a second-order hypercomplex number, and it is represented by second-order independent units, then..." Shen Qi turned to the book for help, and the literature he consulted was "On Linear Expansion".

The high-end textbooks of the University of Science and Technology of China are not very useful to Shen Qi. He pins his hopes on "On Linear Expansion". Useful.

"It's useless to rely on anyone for the open-book exam, you can only rely on yourself." Come on, Shen Qi can do it himself and deduce it by himself.

In another way of thinking, take a hypercomplex number γ and two hypercomplex numbers α and β as the inner product, then the expression of this product in three dimensions is... Shen Qi was excited, haha, there it is!

Shen Qi wrote furiously:

Q=[αβ]γ

=(α2β3-α3β2)γ1+(α3β1-α1β3)γ2+…

...

Next, perform a wave of determinant operations:

Q=▏α1β1γ1▏

▏α2β2γ2▏

...

Algebra cannot be separated from geometry, and geometry gives new life to algebra.

Shen Qi used Q geometry to explain the volume of a parallelepiped composed of line vectors of α, β, and γ.

"Then this volume can be positive or negative... By the way, let's do it like this!" Shen Qi obtained a plane measurement, and the first problem was solved.

I was so selfless in doing the questions that I forgot the time.

Shen Qi looked at the time on his phone, he was nervous, this... I don't have much time left.

The countdown is 43 hours and 27 minutes, and the progress is 1/36.

According to this problem-solving progress, I can't solve the remaining 35 questions without eating, drinking or sleeping!

Shen Qi subconsciously wants to solve all 36 questions, not the passing line of 28 questions.

"Then don't eat, drink, or sleep!" Shen Qi's heart thumped, and the same words were repeated, and he pretended to be tearful.

Shen Qi didn't check any information anymore, and speeded up the progress of answering the questions.

Another 3 hours passed, and two more questions were solved.

The countdown is 40 hours and 27 minutes, and the progress is 3/36.

Despair, Shen Qi has not experienced the taste of despair for a long time.

Professor Sun, Director Long, you guys are crazy. Damn, is this a question for undergraduates? Is it a question for freshmen?

The countdown is 38 hours, and the progress is 4/36.

Shen Qi fought continuously for nearly 10 hours and completed four questions.

He encountered trouble in the derivation calculation of question 5.

The answer page for question 5 of the test paper was full, and Shen Qi still hadn't found the core steps to solve the question.

It was already 10 o'clock in the evening, but fortunately the library was open all night.

Shen Qi, who was extremely tired, sent a message to Professor Sun: "There are too few blank spaces on the test paper, can you attach a page?"

Professor Sun replied with one word in seconds: "Yes."

It seems that Professor Sun is paying attention to Shen Qi all the time.

Shen Qi is taking a credit test. He is very free, can go anywhere, can look up all materials, and is even allowed to send text messages to the professor who gave the question.

However, this exam format often means that it's hellish.