Chapter 286: Not streamlined enough (one/three)

　　 This young man Xu Mang knew him. When get out of class was over the day before, he told Xu Mang that this is a PhD student and he is a good person.
"what?"
　　 "Really?" Xu Mang said awkwardly and impolitely: "It may be a slumber, so is it just a Ph.D.?"
　　 "How many more do you want?" the student said.
"Oh..."
"This...Is there too many students in this Ph.D.?" Xu Mang's conjecture, there shouldn't be so many people in PhD students, good fellow... I saw in the multimedia classroom before, at least there are eight or nine. ten people.
　　 There are so many doctors?
　　 too worthless, right?
　　 "It's not just the mathematics department, there are many other departments." This young man, who is not a young man, asked Xu Mang, "Did you come here to listen?"
"Ok!"
"Then what... They say the teaching quality of PhD courses is high." Xu Mang said with a grin: "I felt it the day before yesterday, and it was really different... Besides, the professor just set up the problem, let me see It depends on how strong the PhD students are."
　　 Hearing Xu Mang's words, the young man smiled bitterly: "That question...I believe almost no one can solve it."
"what?"
　　 "Oh..." Xu Mang nodded, "It's really difficult."
after that,
　　 Xu Mang gradually got acquainted with this young man. He originally thought he was a PhD student in the Department of Mathematics, but he got it wrong... He studied economics.
　　 "My girlfriend studied in China Economics and Trade." Xu Mang said, "I thought that studying economics does not need to learn mathematics. I never thought that studying economics should be proficient in mathematics... My brother is tired."
"Okay..."
　　 "Have a meal." The young man smiled bitterly and said silently: "I'm sorry, I am more realistic."
　　 "It's okay."
　　 "I'm more realistic than you." Xu Mang showed a stubborn smile and said silently: "Brother, PhD in Economics...There are many places to work in the future. I guess there is a million annual salary."
of course,
　　 Xu Mang just said casually. He didn't know how much money he gave, but it was always right to say higher.
　　 people...
　　 I just love listening.
　　 At first, Xu Mang wanted to help his father-in-law recruit this young man, but think about it...people might not like it, and then if the other lion opens his mouth and asks for an important position, what can I do?
　　 I can pat my chest, but all the problems are left to my old husband. I am afraid that at that time... I and Xiaoman have come to an end.
Ugh...
　　 "Brother?"
　　 "Do you think there is a way out for someone like me to study economics?" Xu Mang asked curiously.
　　"..."
　　 "Brother don't make trouble!" the young man laughed.
　　 Xu Mang: 囧
　　 soon,
　　 The number of students in the multimedia classroom gradually increased, and soon the number reached 80.
　　 Many people did not respond to the addition of a stranger. After all, this is a comprehensive classroom. I just met yesterday but did not come the next day. It is normal.
　　 "Have you done that question?"
　　 "No... it's too difficult. At first, I thought it was a simple power series convergence problem. Who knew it was a quarter of the solution, but found that it was not!"
　　 "Yes, yes, it's not a power series convergence problem at all... The professor set up a trap on purpose."
　　 "Oh...you are also stupid, since the professor dared to give it two days, it means that you can't solve it in a week!"
　　 suddenly,
　　 There was a wailing in the classroom.
　　 There are also a few people indifferent,
　　 They belong to the Department of Mathematics, it doesn't matter to them, they have already done it, but I don't know if it's right.
　　 Professor came in,
　　 still bring a textbook.
　　 As there is no time, the professor is not in class at this time, but the students below are silent.
　　 at this moment,
　　 Xu Mang received a call.
　　Comer is Xiaoman.
　　"..."
　　 "Hello?" Xu Mang sneaked out from the back door and asked in a low voice, "What are you doing?"
　　 "Where did you die?" Yang Xiaoman said angrily: "I found out that you were not here early in the morning...Did you sneak into someone else's classroom to make trouble?"
　　 "Little Man..."
　　 "Actually, I am not the kind of person you think." Xu Mang said helplessly: "I am...not bad."
　　 "Go!"
　　 "I went to the game site, anyway, be a good man!" Yang Xiaoman exhorted, and then hung up the phone.
Ugh...
　　 This short girl,
　　 The desire to control is really strong!
　　 Xu Mang can understand why Xiaoman is like this. There is no other reason, but he is so handsome.
　　 sneaked back to the classroom secretly,
　　 Within a minute, class began.
　　 "Ahem!"
　　 "Let's talk about the teaching content first, and then leave half of the time to talk about the topic the day before yesterday." The professor said.
　　The words fall,
　　 caused discomfort to everyone present.
　　 Leave half of the time? !
　　 As expected, the difficulty of this topic is unimaginable.
　　 After hearing the professor's words, most people's emotions gradually calmed down. In fact, it's not that they don't know how to do it, but that the topic is too difficult.
　　 Balanced.
at this time,
　　 Xu Mang glanced at the man next to him, and found that he took a long breath, as if he had gotten some relief. After thinking about it for a moment, Xu Mang thought that the old man might have reaffirmed his IQ.
　　 is not stupid,
　　 The topic is too difficult.
　　 class,
　　 is very boring.
　　 Xu Mang heard that he was about to fall asleep, and the sleepy waves were constantly washing the beach of consciousness. Fortunately, Xu Mang held back, he secretly took out his phone.
　　 Because the account of King of Glory was blocked for a week, Xu Mang could only play Hearthstone. After updating the game version, Xu Mang discovered that many orange cards had been issued recently.
How to do?
　　氪!
　　 Kaka Kaka, Xu Mangkri cost 20,000.
　　 Actually Xu Mang doesn't like playing Hearthstone. What he likes is the process of opening card packs, especially ‘Wow! Golden legend! ’, can make people feel happy.
Pity...
　　 Xu Mang is a non-chief, very non-very kind.
　　 However, such a person has yet another heart to become the emperor of Europe.
　　 this is not,
　　 it took nearly 20,000 to show the three eggs once.
　　 Screenshot,
　　 sent to the game group.
　　 The elegant and easy-going priest (Xu Mang): Three eggs wrapped in a free card [Picture]
　　 Then the group exploded.
　　 Xu Mang saw the various words of the members of the group, all around the four characters of "Ouhuang Niubi", and then smiled happily. The 20,000 flowers are true!
　　 "This classmate!"
　　 "What are you smirking?" The professor glanced at Xu Mang, saw that he was stupid and laughed, and said on the spot: "Pay attention to class discipline."
"Oh..."
　　 Xu Mang hurriedly put away his smile, pretending to be attending the class seriously.
　　 soon,
　　 finally got through the rest time, Xu Mang slipped away to the toilet, but when he came back, three or four people surrounded the classroom.
"what's going on?"
　　 "Is the class too boring, and the students fainted?" Xu Mang hurriedly got up with the mentality of eating melons. It turned out that everyone was discussing the topic, and it was...the professor was going to check the students' results.
　　 in class,
　　 The students returned to their seats.
　　 The professor in front of the podium asked: "Who did the question the day before yesterday?"
　　The words fall,
　　 There were three or four people raising their hands, all from the Department of Mathematics.
　　 Facing this situation, the professor did not complain. After all, the difficulty is there. If all of them are solved, it does not mean that there is a problem with his level.
　　 "Little money."
　　 "You can talk about it." The professor said to a student.
　　 then,
　　 This student named Xiaoqian walked to the stage, inserted the U disk, opened the document, and began to explain his problem-solving process.
"Here..."
"There..."
　　 Xiaoqian can speak very well, and the students underneath also listen very carefully, but Xu Mang is the only one who is confused and at a loss.
　　What is he doing?
　　 Why don’t you understand?
　　 My god!
　　Is my business ability down?
　　Don't say... Xu Mang really doesn't understand what he is talking about. The logic is chaotic, and the process is complicated, which is outrageous.
ten minutes later,
　　 The Xiaoqian classmate finally finished speaking, and then there was applause. Xu Mang also applauded. Although he didn't know what happened just now, it is a matter of politeness to respect the results of other people's labor.
　　Professor was expressionless, and then he called the next classmate, then another, and both...
　　 Xu Mang: (￣△￣;)
　　This...what's the situation?
　　 Actually,
　　 The answers of these people are correct, but almost everyone went around a big circle and solved the problem in a very complicated way.
　　 is a bit time-consuming and laborious.
as predicted,
Professor 　　 said: "The answer is right, but there are problems with this process and it is not concise enough."
　　 Then,
　　 The professor began to analyze this power series convergence problem for everyone present.
"First of all, don't be blinded by the question." The professor said: "In the future, you will encounter many situations like this. It seems that the power series convergence problem is actually another problem, but you will find , The final answer is back to the convergence of the power series."
　　"..."
　　"..."
　　"..."
　　Professor,
　　 You said something simple!
　　 This is obviously a fusion of multiple elements inside, but once you go in, you can't get out.
　　 in the next twenty minutes,
The professor analyzed the pitfalls of this problem and the matters needing attention in detail. Xu Mang and the professor have the same views. All problems are on these points. As long as the respective logic is straightened out, the problem can almost be solved. .
　　It seems...
　　 I don’t need myself today.
　　 However,
　　 Things are not as simple as Xu Mang imagined~EbookFREE.me~ Then,
　　Professor began to solve the problems for the students on the spot. In the previous steps, there was no accident, almost the same as Xu Mang's, but at a very critical point, Xu Mang found that there was a problem in the problem-solving process.
　　 There is nothing wrong with wrong,
　　 will only become cumbersome later.
　　 As expected,
　　 After a problem appeared in the middle, the professor's problem-solving process became redundant, and probably... seven steps were redundant.
　　 In fact, this is already a standard process, but for Xu Mang, it can be simplified a bit to make it more perfect.
　　 "All the processes are like this." The professor finally wrote an answer and said blankly: "This topic needs to focus on logical thinking, and find the corresponding balance in each key transformation."
"All right."
　　 "Next..."
　　Professor was about to say "off get out of class" when he was suddenly interrupted by a student.
　　 "Professor!"
　　 "I think there are some flaws in your problem-solving process just now." Xu Mang stood up and said to the professor: "Your process is not simple enough!"
　　......
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