Xueba's Sea of ​​Stars

Chapter 46 If...

【What needs to be learned】

After writing this line, Bi Wanqing continued: "After all, it is a physics competition, and you will not be required to thoroughly understand the entire book of advanced mathematics. For example, there is no need to read the median value theorem. You need to master these."

After Bi Wanqing finished speaking, he picked up the chalk and began to write on the blackboard.

【Derivative】【Differential】【Definite Integral】【Indefinite Integral】【Solving Differential Equation】【Taylor Expansion】

After finishing writing, Wan Qing drew a circle on the word integral of definite integral, "In terms of integral, what you need to master is various forms of exchange and trigonometric function integral, which can be said to be the most important one. Most of the logarithmic integrals encountered in calculations need to be converted into trigonometric functions and then integrated."

Wu Bin, who was listening below, nodded for a moment, and secretly rejoiced that he had conquered the fierce horse "trigonometric function" a while ago.

"After you have learned solidly, what I want to teach you is the specific application of calculus in physics problems. The first point is that you must be able to formulate differential equations for specific problems. At this point, you have to answer a lot of questions. I will prepare the questions for you."

"How many kinds of questions can be solved!?" Hearing Bi Wanqing's words, Wu Bin almost stood up excitedly.

For Wu Bin's reaction, Bi Wanqing would show a very kind smile every time, and then said: "Don't worry, there are a lot."

"that would be great!"

"In addition, the Taylor expansion is mainly used for small-scale analysis. Sometimes the commonly used first-order small-scale expansion is not enough, so Taylor expansion must be used to perform second-order calculations..."

Afterwards, Bi Wanqing spent more than an hour explaining clearly to Wu Bin the framework and general content that he needed to learn.

Seeing Wu Bin's expression of no fear or boredom, Bi Wanqing stepped off the podium and said to him with a smile: "Although most people want to achieve results in the semi-finals or even the preliminaries, they have to do special competition training from the first year of high school." .”

"But there is always a master who is outstanding in every era. I once had a professor who entered high school at the age of 8, began to attend college courses at the age of 9, and then participated in the International Physics at the age of 10, 11, and 12. Olympic competition and won bronze, silver and gold medals."

After hearing this, Wu Bin couldn't help opening his mouth. What he doubts now is not only whether the professor also has a system, but even whether the system in his mind is a little more advanced than his own.

Seeing Wu Bin's dumbfounded look, Bi Wanqing laughed twice, "If you can pass the semi-finals and advance to the national championships, worst case scenario, you can also witness with your own eyes the wonderful scenes of Peking University and Jinghua University competing for the national first-class players. "

"National competition... what is it like?" Wu Bin couldn't help thinking about it.

"National competition~" Bi Wanqing stroked his thinning hair, and said with a look full of memories: "In the semi-finals, those with particularly good results will form a team to face other provincial teams. There are only a hundred people, all of whom have unique skills, among which the students from the two lakes are the strongest, and there are always people from them representing the country to participate in the IPhO every year."

'Are you going to compete with the best players in the world...'

Thinking of this, Wu Bin couldn't help but feel excited.

Looking at Wu Bin's eyes full of fighting spirit, Bi Wanqing seemed to recall something, and said, "You remind me of something my professor said to me before."

"What?"

"He said, for things like competitions, play if you like it, and play something else if you don't like it."

"It seems... quite philosophical?"

"Actually, it was a casual remark from his old man. Later, he told me the story of his childhood. He liked to dismantle things since he was a child, such as old-fashioned radios, alarm clocks, watches, and game consoles."

"This...isn't this a brat?"

"But people can put it back after dismantling it."

"Boss, boss, teacher, please continue."

"Later he told me that electric current can be eaten, 10v is sweet, 50v is salty, 100v is spicy, 150v will make the tongue feel nothing, as for 220v...you can try it."

Wu Bin, who was breaking out in a cold sweat, wiped his forehead with his hands, "I think I'm quite happy to be alive."

I couldn't help feeling in my heart: "Yaoshou, a brat with a high IQ really knows how to play." '

Seeing Wu Bin's appearance, Bi Wanqing laughed, and patted Wu Bin on the shoulder and said: "Interest is always one of the most important parts in learning, and your interest in physics is even worse than mine, so everything is possible." , come on."

"How come, teacher, if you are not interested in physics enough, why would you work overtime to teach me?"

"Hahaha, you can see it." Bi Wanqing laughed a few times, then sighed suddenly, "If every student is like you, there probably won't be any calls to reduce the burden."

"Teacher, you seem to be particularly concerned about reducing the burden." Wu Bin asked.

"I've experienced the era when it was full of gold medals, and looking at it now, can I not care about it?" Bi Wanqing sighed again after finishing speaking.

When it comes to competitions and gold medals, Wu Bin suddenly had an idea.

If one day e-sports can promote the development of the world and become the mainstream, everyone will be proud of e-sports, and they will play games every day to train until their livers explode, and then their parents will start crying.

"It's too hard for children to play games, and they play until five or six in the morning every day."

"Isn't that right? Yesterday I practiced for eight hours to make up the knife, and my eyes are lost."

"It's nothing to you, my child's waist is injured!"

Then the Education Bureau couldn’t bear the pressure and began to reduce the burden on children. Schools were not allowed to enroll students based on the winners of the Internet cafe league and SOLO games. It was strictly forbidden for all kinds of schools to set up mid-lane key classes, shooter key classes, etc. under any name.

Then our country went from being able to win consecutive championships to being unable to even enter the qualifiers.

Then it is estimated that the masses will not just sigh like Bi Wanqing, I am afraid that the Education Bureau will be demolished for you.

After all, it’s just mathematics and physics competitions are too high-end, and only a small number of people can enjoy the fun. Most people can’t even read it, but those who like to watch, and those who understand it, look at the original country. Can you not be angry that your strengths are weakening day by day.

Seeing that Wu Bin was in a daze, Bi Wanqing said, "And do you think reducing the burden is really as simple as it seems on the surface?"

　The code fell asleep yesterday... I will update it today!
　　
　
(End of this chapter)