Chapter 432: Two Solutions
Hearing Zhou Wen's words, everyone's faces showed surprise.
This question on the blackboard is extremely difficult.
Advanced mathematics is a basic discipline formed by calculus, more advanced algebra, geometry, and the intersection between them.
The main content involves sequences, limits, calculus, spatial analytic geometry and linear algebra, series, and ordinary differential equations.
Each of these contents is the content that can win the Fields Medal to the extreme, which is the Nobel Prize in mathematics.
Zhou Wen studied economics, and when he studied Western economics in the later stage, he needed to use advanced mathematics to build economic models.
This question on the blackboard belongs to the content of multivariate function differentiation, and Zhang Guanghua will talk about it in the next lesson.
For most students who have not pre-studied for it, this question is like a book from heaven and cannot be understood at all.
Even the students who had studied it were meditating hard and thinking about the solution to the problem.
Zhou Wen didn't hesitate at all, and walked up directly, looking full of confidence.
Sun Pai's face changed suddenly, and he had stopped for a while.
It's just that he still doesn't look at Zhou Wen very well, and this time he wants to come out to find trouble.
Looking at the question on the blackboard, he felt like the scriptures, and he was drowsy from reading.
He hurriedly pulled a few students next to him and asked, "Do you know this question?"
The students were taken aback and hurriedly said, "This problem requires the Taylor formula, although I have studied it in advance, but I don't know how to use it." ”
"This question is a bit out of the outline, and it is estimated that only Xueba can solve it. ”
"That's right, it's a bit difficult......"
A group of students hurriedly said.
Hearing this, Sun Pai relieved his heart,
He felt that Zhou Wen was just pretending.
The students around him all have good grades, and they study weekdays, if they can't solve it, Zhou Wen will definitely not be able to.
At this time, Zhou Wen had already walked to the podium.
Zhang Guanghua said with a serious face: "Zhou Wen, if you can't answer this question, I can ask other classmates to help you." ”
"No need. Zhou Wen said slowly, his face was extremely confident.
He might still be timid about other art things, but he is not afraid at all when it comes to advanced math questions.
The math problem in front of him, in his eyes, was like a beautiful woman who had stripped naked, without a trace of **, and he saw it through at a glance.
Before Zhang Guanghua could speak, Zhou Wen took a glance to the content on the curtain in his mind.
Then, he picked up the chalk and quickly began to write on the blackboard.
"Pretend!" Sun Pai sneered below.
It's just that as soon as he finished speaking, his face suddenly became dull.
On the podium, Zhou Wen's movements in his hands were fast, and mathematical symbols and formulas appeared on the blackboard one by one, and he couldn't understand them at all.
At this time, at the back door of the classroom, Long Ziling appeared here.
She went to change her clothes just now, and at the moment she was wearing a casual outfit, a pair of tight blue jeans under her feet, her ass was round and straight, and her beautiful legs were slender and straight.
A pair of Gucci ACE women's embroidered sneakers at her feet, and a Chanel women's watch on your wrist, is worth a lot of money at first glance.
She looks like a student in college.
It's just that everyone is looking at Zhou Wen on the podium, and no one notices her arrival.
Long Ziling looked at Zhou Wen on the podium suspiciously, and was stunned for a moment.
She didn't expect that Zhou Wen would actually answer questions on the podium at this moment.
Soon, she found out that Zhou Wen was answering the question on the projection.
"Taylor's formula, the limit transformation, is very difficult for a freshman. Long Ziling chuckled in her heart.
She quickly gave the answer in her mind.
For her, the question is not very difficult.
She had some expectations in her heart that Zhou Wen couldn't answer, in this case, Zhou Wen would make a fool of herself in front of everyone, which would make her feel very happy.
Thinking of Zhou Wen's previous treatment of her, Long Ziling's heart was angry.
After thinking for a while, Long Ziling looked at the blackboard again.
"What? He actually answered!" Long Ziling looked at the blackboard, unable to believe his eyes.
Zhou Wen actually finished answering the entire question in a short period of time.
However, Zhou Wen's actions still did not stop!
He was still writing on the blackboard with chalk.
At this moment, the classroom was boiling.
Zhang Zheng's eyes widened, and he muttered, "The boss really answered! I haven't figured it out after several pre-studies!"
"Why can't I understand it?" Zhao Xianfeng muttered on the side.
"You haven't even read a textbook, so you can't read it. "Zhang Zheng didn't have a good airway.
Zhao Xianfeng scratched his head and said, "The boss has answered, why are you still writing?"
Zhu Hengyang showed surprise at this time, and said: "Before Zhou Wen, he used ordinary methods to solve problems, and now he uses the second method to solve problems!"
At this moment, not only Zhu Hengyang found out, but there were also many students in the classroom who watched Zhou Wen's problem-solving process, and their faces showed a sudden look.
Immediately, everyone was shocked.
The second solution!
Zhang Guanghua was also shocked at the moment, Zhou Wen's problem-solving process was crisp and neat, without the slightest superfluous step, which could be called perfect.
But he's still writing!
"The second solution is terrifying!" Zhang Guanghua muttered.
Zhou Wen's second solution is to use more advanced mathematical methods to solve the problem, which is beyond the scope of advanced mathematics!
As a teacher in the Faculty of Science, how could Zhang Guanghua not understand this!
Mathematics students at Huhai University never study advanced mathematics because it's so easy!
They are studying the more specialized Mathematical Analysis.
The mathematics major is the major of the School of Science, and Zhang Guanghua is also the master's tutor of the mathematics major.
At this moment, the students under the podium looked confused, because they couldn't understand what Zhou Wen was writing at all.
Long Ziling was also surprised, she could vaguely understand Zhou Wen's second solution, but she didn't understand.
Because this is already more specialized mathematical knowledge.
It took a faster time and less space than before, and Zhou Wen wrote out the second solution.
He slowly put the chalk in his hand into the chalk box, and smiled at Zhang Guanghua: "Teacher Zhang, please advise." ”
Seeing Zhou Wen's polite attitude, Zhang Guanghua suddenly felt a sense of accomplishment in his heart.
Zhou Wen is his student, with such an excellent student, what is there to be unhappy about.
"There is nothing wrong with your solution, it can be used as a standard answer, and the teacher has nothing to teach. Zhang Guanghua smiled.
He immediately turned around and said to all the students: "The answer to this question is on the blackboard, Zhou Wen used a total of two solutions to solve the problem, the first solution is the solution in our books, and the second solution is advanced content, but you don't need to master it, these are all mathematics students will learn." ”
"But Zhou Wen's attitude is worth learning from every student, the process of learning is where the fun lies, Zhou Wen can draw inferences from one another, I want to praise him heavily!" Zhang Guanghua said slowly.
Underneath the podium, there was a dead silence.
Everyone was speechless, and Zhou Wen's performance was too dazzling.
"The squad leader is so powerful!" Wen Yanan and Chen Yuexi said in unison.
"The boss is awesome!" Zhao Xianfeng also said excitedly.
Sun Pai's face was extremely embarrassed, he just said that Zhou Wen couldn't answer the question, but as a result, people not only answered, but also used two solutions.
One of the solutions is the content of the superscript.
He wanted to find a crack in the ground and get in.
"Damn, it's better not to come to class!" Sun Pai said angrily.
At the back door of the classroom, Long Ziling looked surprised.
She can understand Zhou Wen's first solution, but she doesn't understand the second.
After all, she is not a math major, and she does not study specifically in this area.
At this time, she felt that Zhou Wen was even more mysterious.
can take out a check for 10 million at hand, and he is so good at studying, what does this person do?
Long Ziling thought in her heart that Long Sheng didn't tell her about Zhou Wen's situation at all, but just said that this was a good friend who was studying at Huhai University.
Long Ziling faintly felt that the relationship between Zhou Wen and Long Sheng was not so simple.
At this moment, she suddenly became curious.
"Student Zhou Wen, why don't you tell us about it in the next class. Zhang Guanghua said with a smile.
Zhou Wen did not refuse, and directly agreed.
In the second class, Zhang Guanghua only added on the side, and Zhou Wen was the main speaker.
The lesson ended quickly.
"Giving lectures to classmates earns two good points. ”
As soon as the bell rang for the end of class, a pleasant voice came from Zhou Wen's ears.
He was suddenly pleasantly surprised, he wanted to see if he could get good value by lecturing to others, and his guess was correct.
You can also get good value from lecturing!
This lesson was finally not in vain, and Zhou Wen's heart suddenly became excited.
Good value is getting harder and harder to earn now, and it's as if he's opened up a new world.
He suddenly thought in his heart, if he can teach like this, can he also get good value as a tutor?
It's all lectures.
But this will have to wait for later testing.
After class, everyone left the classroom one after another, and Zhang Guanghua stopped Zhou Wen.
"Zhou Wen, are you interested in participating in the math competition, your talent is very good. Zhang Guanghua smiled.
"If I could, I would. Zhou Wen agreed without hesitation.
"Okay, I'll sign you up for the next math competition. Zhang Guanghua said with a smile.
He was also very pleased to see such a student in his class.
"No problem, Mr. Zhang, then I'll go first. ”
"Okay, go back quickly, the little beauty in the back is your girlfriend, I've been waiting for you for a long time. Zhang Guanghua looked at Long Ziling at the back of the classroom and showed a meaningful smile.
Zhou Wen suddenly sighed, even if he was blind, he would not look for a girlfriend like Long Ziling.
But he didn't say much, smiled and walked to the back of the classroom.
"Grab the stuff and let's go. Zhou Wen put the textbook in front of Long Ziling and walked straight out of the classroom.
Long Ziling's face changed suddenly.
"Zhou Wen, I'm your assistant, not a miscellaneous worker!" Long Ziling roared.
"It's all the same. Zhou Wen said expressionlessly.