The Magic Trading System

It's three o'clock in the afternoon.

Before the bell rang, a 40 year old man with bottle bottom thick myopia came into the classroom. The man was empty handed and didn't take anything, just like a soy sauce player.

"He is our math teacher, Wu Qingping. He is a very powerful person. He never takes textbooks and teaching plans in class. He always talks on stage." Liu Hongfen introduces Zheng Hao in a low voice.

"If you have given lectures many times, naturally practice makes perfect. Remember the knowledge in your mind and get familiar with it." Zheng Hao smiles.

"Maybe, but he's really good at mathematics. The most difficult courses in our department are all taught by Mr. Wu. He teaches algebra geometry, differential geometry, partial differential equations and extension. Those who can learn these branches of mathematics well are all prodigies. " Liu Hongfen said.

"Zheng Hao, you have to be careful. Miss Wu likes to ask questions in class. Didn't you watch it? So many students are sitting in the back for fear of being questioned by him. " Wu Yanmei said.

"Zheng Hao is also very good at mathematics. He can do all the difficult problems in differential geometry." Liu Hongfen said to Wu Yanmei.

"Really? Didn't he go back to the farm before he graduated from high school? Why teach yourself those boring things? " Wu Yanmei doesn't believe it.

Just as they were talking, the bell rang.

Wu Qingping went up to the platform with his hands behind his back. He took a look at the state of the students and said, "you don't have to sit back to prevent me from asking questions. If you don't want to ask me questions, you can shake your head and say no when I see you. Here, I would also like to praise those students sitting in the front row. Thank you for your support for my class. I will try my best to make you more satisfied with me! "

With that, he began to lecture.

The course of partial differential equation is not particularly difficult to understand. However, the amount of calculation is huge. The solution of a problem can even be written on one or two blackboards.

Therefore, this course is also quite difficult, which students are afraid of.

After listening, Zheng Hao found that he could fully understand and master what Wu Qingping said.

It seems that my primary specialization in mathematics, physics and chemistry can fully adapt to and keep up with the various courses at the university stage.

Zheng Hao thought about it for a while. He felt that it was necessary for him to buy and use the skills Book specialized in intermediate mathematics and chemistry. In this way, maybe he would not have to worry about the three courses of mathematics and chemistry in the college entrance examination.

Thinking of this, Zheng Hao bought an intermediate specialized book of mathematics, physics and chemistry in the system mall, and then used it quietly.

At that time, he found that the knowledge and experience of mathematics and chemistry in his mind were more abundant than before, and the depth was also more profound.

Just when Zheng Hao bought and used the book, Wu Qingping was giving the students a difficult problem in solving partial differential equations.

He was whistling down on the blackboard, explaining as he worked out. However, after filling a large blackboard with formulas, he suddenly stopped.

"Something's wrong." Wu Qingping said.

Under the platform, there was no response.

Wu Qingping scratched his head: "the solution to this problem should be like this! But how did I go astray? "

Originally, Wu Qingping calculated a blackboard, but now he finds that he can't do it any more.

Zheng Hao smiles. He could see what was wrong with Wu Qingping, and he had a simpler algorithm for the problem in his mind.

Liu Hongfen has been following Zheng Hao.

When she saw Zheng Hao smile, she knew that Zheng Hao should have a good idea of the algorithm of this problem.

"Which student volunteered to help me work out this problem, OK?" At this time, Wu Qingping turned his eyes to the platform and said.

"Mr. Wu, I recommend someone who can solve this problem." Liu Hongfen pointed to Zheng Hao and said.

As soon as Wu Qingping heard this, he immediately said with a smile, "let's invite this male classmate to the stage."

Zheng Hao was a little confused.

He did not expect that Liu Hongfen would recommend himself to the stage.

I'm just a stranger. Today, I'm accompanying Liu Hongfen to a class. How can I answer questions on the platform?

"Well, I'd better forget it. I'm not a student in this school, so I won't go on stage to make a fool of myself." Zheng Hao stood up and said to Wu Qingping.

"Classmate, no matter which school you are, you come to my class today. I think it's normal for us to have a discussion about the Academy! Don't put off any more. Come up quickly and help me. Otherwise, if I can't work out this problem today, I will be very tangled. " Wu Qingping said with a smile.

"Mr. Wu, he is not a college student at all. He went home to work in agriculture before he graduated from high school. It's strange that he can help you work out that problem." There was a shout from behind.

But Chen Ziqin told a boy sitting next to him about the origin of Zheng Hao, and the boy said it in a loud voice.Zheng Hao was stunned.

What's more, we are still engaged in class discrimination.

I'm a farmer, but how do you know that I can't count it?

The boy's words caused a lot of confusion in the classroom.

Many people are talking about it.

"Damn it! There are only a few girls in the mathematics department. They are not rich in the first place, but now they are good. The most beautiful flower was picked by a farmer

"Such a difficult problem, even teacher Wu is a little uncertain. How can a person who repairs the earth solve it?"

"How depressed! What happened to Liu Hongfen? A person who was so cold and arrogant before is now chased by a mud leg. "

"Scorn! Does he understand such a difficult course of partial differential equation? And come here to fill the garlic

Zheng Hao frowned at these remarks.

He stood up from the stool, nodded to Wu Qingping with a smile, and said: "Mr. Wu, I didn't want to show my shame, but I feel that everyone seems hostile to me, so I'm sorry. I still have to go up and fill a big clove of garlic!"

"Young man, you have to have courage! Young man, I think you can do it Wu Qingping said with a smile.

Zheng Hao went to the platform. He picked up the eraser first, and "chuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchuchu.

Then he picked up the chalk and began to write on the blackboard.

While writing, he explained.

Every step was explained in detail, which was very clear at a glance.

He had at least half the formula less than Wu Qingping's answer, and finally solved the answer. Then, he turned to Wu Qingping with a smile and asked, "teacher Wu, look, is this the answer?"