Chapter 122: 48 Hours of Madness
Shen Qi quickly flipped through the senior generation test paper in his hand, which was actually more like a collection of senior generation exercises.
Preliminarily, these 36 questions are by no means exercises in the textbooks of the higher generations, or exercises of comparable difficulty.
If it is an exercise on the textbook of the high generation, Shen Qi can complete 36 questions in 3 hours.
But now, the situation is not optimistic.
Time is tight and the task is heavy, Shen Qi said goodbye to Director Long and Sun Erxiong, and this is the departure of the meteor.
"It's good to let Shen Qi complete the credits earlier, mathematics is originally a subject that relies on talent to eat, and if you can't get grades before the age of 30, it will be difficult in this life. Director Long said earnestly, "Shen Qi finished his credits earlier, so let's set the direction earlier." ”
"I know Shen Qi better, I brought him to the Golden Autumn Camp last year, I think it's okay. Sun Erxiong agreed, and then said: "However, the credits of our mathematics department are not given away in vain, take them in advance, and you have to take them with real skills." ”
"These 36 questions are difficult, and the graduate school entrance examination is at this level, right?" Director Long said unbearably, "It's hard for this young man." ”
Sun Erxiong replied: "The postgraduate entrance examination is closed, and Shen Qi is open. ”
"Is there a difference between opening and closing the book?" said Director Long.
"Actually, it doesn't make a difference. Sun Erxiong also smiled.
Director Long suddenly thought of a question: "Xiao Sun, maybe I'm thinking too much, you said that Shen Qi can really solve 36 questions alone?"
Sun Erxiong understood what Director Long meant, and Shen Qi might invite a gunman.
According to the test rules formulated by Director Long and Sun Erxiong, Shen Qi can consult any information within 48 hours, regardless of the location of the answer, anyway, at this time the day after tomorrow, Shen Qi can just hand over the test papers.
This means that Shen Qi can ask anyone for advice, and even find someone to help him complete the test papers.
The freshmen will definitely not be able to help Shen Qi, but there are masters among the sophomores, juniors and seniors in the School of Mathematics, as well as graduate students and doctoral students.
"I'm sure that Shen Qi won't ask anyone for help, and he will definitely complete this test alone. Sun Erxiong said.
"Oh, honesty, he's an honest kid. Director Long nodded, expressing his gratification.
"Honesty is one thing, and the most important thing is that he has to play this show by himself and find someone to help, he can't afford to lose face. ”
"Oh, to save face. ”
......
Shen Qi came to the library non-stop, and he had to finish the question he had asked for with tears.
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.
Together, these references can be arranged around the globe...... Of course, it can't go around the earth, but when it is stacked up to nearly a person's height, Shen Qi divided the materials into several piles and put them on the table in the self-study area of the library to occupy a place.
Before starting the war, Shen Qi first had to do one important thing, to eat his stomach.
Half a catty of beef, a pot of boiled water, and it's done.
Shen Qi returned to the library and solved the problem.
A simple summary of advanced algebra is a general term for the development of algebra to an advanced stage. The system of lower equations we learn in middle school belongs to elementary algebra, which is the most basic enlightenment chapter of algebra.
Advanced algebra courses in modern universities usually include two branches at the undergraduate level: linear algebra and polynomial algebra.
Lines and polynomials are simple and difficult, and it is difficult to say that they are difficult to say, and you can see the scale of the questioner.
Obviously, the test paper in front of Shen Qi is quite difficult.
The first problem involves Glassman's expansion calculus.
Glassmann was a strange man, he studied theology at the University of Berlin and became a mathematician after self-education.
In fact, Glassman's theory of expansion was written earlier than Hamiltonian's quaternion.
However, because Glassman, who has a theological background, exaggerated the teachings he advocated in his mathematical works, which cast a layer of mystery on mathematics, he was disgusted by his peers and readers.
Well, Shen Qi's borrowed book "Theory of Linear Expansion" is actually an adapted version of Glassman's theory of expansion, and the religious overtones of this book have been removed, and new theories of the 20th century and century have been added.
"This product is a supercomplex number of the second order, and it is represented by independent units of the second order, then ......" Shen Qi turned the book for help, and the literature he consulted was "The Theory of Linear Expansion".
The University of Science and Technology of China version of the Gao Dai textbook is not very useful to Shen Qi, he pins his hopes on "The Theory of Linear Expansion", but this reference is not much use, when reading to kill time OK, solve the problem, it will not come in handy.
"It's useless to rely on anyone for open-book exams, you can only rely on yourself. "Come on, Shen Qi will do it himself, deduce it himself.
In another way, if one supercomplex γ and two supercomplex α and β products are used as the inner product, then the expression of this product in three dimensions is ...... Shen Qi is a spirit, haha, there is!
Shen Qifen's book:
Q=【αβ】γ
=(α2β3-α3β2)γ1+(α3β1-α1β3)γ2+......
......
Next, a wave of determinants is performed:
Q=▏α1β1γ1▏
▏α2β2γ2▏
......
Algebra cannot be separated from geometry, and geometry gives algebra new life.
Shen Qi uses Q geometry to explain the parallelepiped volume composed of linear vectors of α, β, and γ.
"So this volume can be positive or negative...... That's right, just do it!" Shen Qi got a plane quantity, and the first question was solved.
I get so carried away with the questions that I forget the time.
Shen Qi looked at the time on his phone, nervous, this ...... I'm running out of time.
The countdown is 43 hours and 27 minutes, and the progress is 1/36.
According to this progress, you can't solve the remaining 35 questions without eating, drinking, or sleeping!
Shen Qi subconsciously wanted to get all 36 questions, not the passing mark of 28 questions.
"Then don't eat, drink, or sleep!" Shen Qi's heart was crossed, and he still said the same sentence, and he was forced to blow it, and he had to finish it with tears.
Shen Qi didn't check any information anymore, and accelerated the progress of answering questions.
Another 3 hours passed, and two more questions were solved.
Countdown 40 hours and 27 minutes, progress 3/36.
Despair, Shen Qi hasn't experienced despair for a long time.
Professor Sun, Director Long, you are very perverted, Nima, is this a topic for undergraduates? Is it a question for freshmen?
The countdown is 38 hours, and the progress is 4/36.
Shen Qi fought for nearly 10 hours in a row and completed four questions.
He had trouble with the derivation calculations for Question 5.
The answer page of question 5 in the test paper was full, and Shen Qi still hadn't found the core steps to solve the question.
It was 10 p.m., but the library was open all night.
Shen Qi, who was extremely tired, sent a message to Professor Sun: "There is too little blank space on the test paper, can I attach a page?"
Professor Sun replied with one word in seconds: "Yes." ”
It seems that Professor Sun is always paying attention to Shen Qi.
Shen Qi is being tested for credits, he is free, he can go anywhere, he can consult all the materials, and he is even allowed to text the professor who asked the question.
However, this mode of examination often means that it is one hell of difficulty. 8)