Li Miaomiao was speechless: "If you look at the computer here every day, can you get over 90 in the final exam?"

"If you are from the literature department, I can also think that you are reading literature endorsements when you look at the computer. The problem is that the courses in the mathematics department require a lot of calculations and exercises."

She was a little disappointed, disappointed with the other party's arrogance.

Zheng Li spread his hands and said, "Let's wait and see."

Li Miaomiao nodded: "No need to wait and see, I have some questions here that I need your help to answer."

"No problem, but you have to pay." Zheng Li thought to himself that the first order finally came to his door.

Li Miaomiao didn't worry too much about the charging issue, "You can help me answer it first. Once you figure it out, I'll forward it to you on WeChat immediately."

After saying that, she took out the draft paper prepared in her schoolbag: "Here!"

"Suppose V is a finite-dimensional Euclidean space, V1 and V2 are non-trivial subspaces of V and V=..."

The most troublesome thing about Earth's mathematics for him is recording rankings, finite dimensions, and Euclidean space. These concepts and corresponding terms are completely different from the education Zheng Li received.

Zheng Li scanned the questions at a glance and said directly:

"This is a typical problem that is solved using matrix expansion thinking. First, let dimV1=m, dimV2=n, let m, n>0. Take a set of orthonormal bases of V1 and V2 respectively. Together, they

is a set of basis of V..."

While Zheng Li was talking, he was writing on the scratch paper, and he just finished writing when he finished explaining the solution.

"The essence of this question is to test your understanding of the application of matrix concepts in Euclidean space."

Li Miaomiao snatched the draft paper from Zheng Li's hand. Her first reaction was, "The writing is a bit ugly."

After Li Miaomiao carefully read the answers on the paper, he stared at the other party with his beautiful eyes, as if he wanted to get to know Zheng Li again.

Although she couldn't understand whether Zheng Li's answer was correct or not, based on Zheng Li's explanation, Li Miaomiao's intuition told her: This should be correct.

Li Miaomiao came well-prepared today. Although their one-week relationship ended, Li Miaomiao still regarded Zheng Li as her friend. She had an inexplicable sense of loyalty to her friends.

She deliberately found difficult questions from the Internet to embarrass Zheng Li, in order to make him realize his mistakes and get back on track.

For most college students, the most important thing in their student career is their grades.

The question she was looking for was a question in the finals of a college student mathematics competition: "Have you done this before?"

Zheng Li shook his head: "No, do you still need to do such a simple question before you can solve it?"

Li Miaomiao nodded: "Okay, it's only five minutes now. I have two more questions here. Please help me solve them."

“Let f:R->R be a uous fun which satisfies

Sup|f(x+y)-f(x)-f(y)|<∞(x,y∈R)......

Prove sup|f(x)-2014x|<∞(x∈R)”

"Let f1,f2,f3,....,fis on D={z||z|<1} and uous on...."

Zheng Li glanced at the question. If he had just arrived, he might not be able to read the question. Fortunately, when he looked for information on the Internet through his computer in the past few days, he almost always browsed English pages.

English in mathematics is very simple, and the grammatical structure could not be simpler. As long as you know the meaning of the nouns, you can understand it.

"The first question says that f(x) is a continuous function on R. Its domain and range are both R. Then the condition is given. When n tends to infinity, f(n) divided by n will

Equal to n. Then let you prove that sup|f(x)-2014x|<∞, you might as well assume that sup|f(x)-2014x|=M, M is finite."

"For x∈R, it is always true that there is n such that x is between n and n+1. Therefore, |f(x)-f(n)-f(x-n)|+|f(

x-n)-2014| will be less than or equal to 2M+sup|f(t)-2014t|, where the value range of t is 0 to 1, taking a closed set."

At this time, if Li Miaomiao listened carefully to Zheng Li's speech, he would find that his speech rhythm was very stable and his tone did not change.

But now her mind is full of: who am I, where am I, what is he talking about.

Just like the first question, Zheng Li wrote as he spoke, filling the front and back of the two draft papers.

After Zheng Li finished writing, he pushed it towards her, "If you don't understand something, you can ask me. If you don't understand, you can read the answer I wrote first. Is there any step you don't understand?"

Li Miaomiao's face flushed, and she was embarrassed to say that she didn't understand anything.

The School of Mathematics basically has classes every afternoon, and the study room is usually empty except during exam weeks. So no one else comes to disturb the two of them.

Li Miaomiao shook his head and cleared up what he had just heard from Zheng Li: As a high-level math student, you don't need to know so much.

"Wait for me for a moment, and I'll take it to my friend to see if what you said is correct."

Zheng Li nodded and said it didn't matter. He had full confidence in himself. As a mage who had lived for a long time, this very basic analysis content was not difficult for him at all. It was not as difficult as eating dessert after a meal.

The primitive way in which the earth transmits knowledge surprised him. The efficiency of listening, speaking, reading and writing was too low.

The way knowledge is transmitted does not match the level of technological development.

When Zheng Li was in the Mage Academy, everyone paid through the magic network and downloaded the purchased knowledge into their brains. A trace of nostalgia flashed in his eyes, as countless years had passed since he lived in the academy.

In his opinion, the acquisition of knowledge on earth is too cheap, and the Internet allows everyone to have access to massive information.

After Li Miaomiao took a photo of Zheng Li's answer and sent it to Professor Liu, he got up and walked outside the study room, called directly and asked:

"Uncle Liu, please help me see if these questions are written correctly. I'm sorry to trouble you. I'll ask my dad to treat you to dinner later."

Liu Gui is a professor in the Department of Mathematics at Jiangcheng University. He and Li Miaomiao's parents have been colleagues for many years and have watched her grow up since childhood.

Liu Gui was in his office in the Department of Mathematics at this time. After receiving the call, he shook his head helplessly: The freshman in mathematics should trouble him.

He glanced at his phone and his expression became serious.

Liu Gui originally thought it was just high math for his freshman year, but he found out that what the other party brought over was actually the test questions from the Qiu Competition in the first half of this year.

He guided junior students to participate in the Qiu Competition this year and was deeply impressed by the topics of this year's Qiu Competition.

Liu Gui turned on the computer, looked at the computer screen carefully, and then immediately dialed the number:

"The writing is pretty good, but it's definitely not done by you. Not to mention that the handwriting is completely different from yours, and you can't do this question alone."

Li Miaomiao refused: "Isn't it okay to look down on people? Why are you so sure?"

Liu Gui: "I don't know where you found that geometry question. It's at least as difficult as the final question in the final exam for freshmen in the Department of Mathematics. You can't do it with a score of only 120 in high school mathematics.

"

"The other two analysis questions are all part of this year's Qiu competition. If you can do them, you won't have to study liberal arts mathematics."

Liu Gui showed no mercy: "Tell me, who did it?"

Li Miaomiao didn't take it seriously after being criticized, but smiled and said: "Hey, tell me first, are you doing the right thing?"

Liu Gui nodded and said: "There is no problem in solving all three questions. The thinking is very clear and the solution is the simplest solution."

"Qiu Sai only completed the competition in the first half of this year. The official answer can't be found outside. Tell me, who did you ask for it?"

"I took care of junior students this year. During the selection exam, I didn't find anyone who could answer these two analysis questions correctly."

Qiu Sai has been restored to the Qing Dynasty in the past years, with at most one person from the University of Science and Technology of China taking over. Even if the mathematics department of Jiangcheng University is ranked among the top ten in the country, students from Jiang University have to rely on luck to win the bronze medal in Qiu Sai.

Li Miaomiao smiled and said, "He is a freshman in your college. His name is Zheng Li."
Chapter completed!