Rebirth 1999: Opening the Age of Black Technology

Bang!

A chalk end hit Chen Xiao's head.

Teacher Liao frowned and her voice increased a bit.

"Tomorrow is a consultation, so everyone should cheer up a little bit. I just talked about a question of sending points, but many of you can't afford it. Let's continue to look at this question and find the distance of x-2y=0. The equation of the smallest circle..."

Chen Xiao shuddered, and came back to look at everything in front of him.

A teacher wearing heavy glasses is writing math problems on the blackboard, and the countdown to the college entrance examination is hung on the wall next to it - December 16, 1999, there are 205 days before the college entrance examination (the college entrance examination in 1999 was in July).

Chen Xiao was a little stunned. He just drank a little too much and stayed in a hotel for one night. How did he go to 1999?

Chen Xiao opened the somewhat mottled tin stationery box on the desktop, and illuminated himself with the reflective lining inside the stationery box.

He still looks the same, but much younger.

The name is still Chen Xiao, but the experience is completely different!

Before his rebirth, Chen Xiao resigned from a scientific research institution to start a business, and finally became the CEO of a technology group with billions of assets. The industries under his name involve medical health, artificial intelligence, etc. Although he is unmarried, there is no shortage of women.

The memory of this body flooded into Chen Xiao's mind at once. As for the current Chen Xiao, although his name and appearance are exactly the same as his own, his life experience is completely different. Although his grades are good, his family is more difficult.

His father, Chen Qiang, was an ordinary worker at the Jiangcheng State-owned Machinery Factory, and his mother, Lin Hui, did not have a job. She set up a stall outside the community of the machinery factory to sell some breakfast and stationery. The life at home was very stressful.

Chen Xiao's parents, one was a university professor and the other was a doctor, died in a car accident very early on.

The timing is also totally wrong!

Before the rebirth, Chen Xiao was only born in 2019!

If it is explained by metaphysics, Chen Xiao has been reborn into a parallel world, and the time and space are a little disordered.

Chen Xiao looked at this unfamiliar era and was stunned!

He doesn't want to be reborn! This time from a big boss to an ordinary high school student, starting from 0?

Chen Xiao is tired thinking about it!

Math teacher Liao looked at Chen Xiao again, patted the table heavily and asked, "Who knows this question?"

He had high hopes for Chen Xiao. Although this boy's family conditions were not good, he worked hard and was a good student.

Mr. Liao waited for a while, but found that no one raised their hands to answer, and the students looked at this question with dazed faces, not knowing where to start.

He called by name: "Chen Xiao, come up and answer."

Chen Xiao was still confused at the moment, but after the teacher named him, he still walked up.

There is a math problem on the blackboard: [Assume that the circle satisfies: ①The chord length obtained by cutting the y-axis is 2; ②It is divided into two arcs by the x-axis, and the ratio of the arc lengths is 3:1. In a circle, find the equation of the circle with the smallest distance from the center of the circle to the line ι:x-2y=0.]

This question is very simple! In this era, the 1999 college entrance examination mathematics questions are much simpler than in my own era!

Moreover, Chen Xiao has always been engaged in science and technology work, and this math is still difficult for him.

Chen Xiao picked up the chalk and wrote the answer on the blackboard: "If the center of the circle is P(a, b) and the radius is r, then the distances from point P to the x-axis and the y-axis are │b│ and │a respectively. │…”

His chalk writing is smooth and the font is powerful. After a few minutes, Chen Xiao finished writing the answer.

The classroom was very quiet in the afternoon, and everyone in the class was a little nervous breathing.

Teacher Liao stood behind Chen Xiao, and kept nodding while watching Chen Xiao's answer! As expected of a student you are optimistic about! The whole class can't do it, only Chen Xiao can!

And Shen Wei, a girl sitting not far in front of Chen Xiao, kept her eyes on Chen Xiao's problem-solving steps, and quickly compared with her own thoughts.

Then Shen Wei bit her lip and took out her notebook to record all the answers.

Shen Wei's tablemate Su Qiao had an uncomfortable look on her face, and she didn't know what she was talking about in her mouth.

When Chen Xiao wrote, the whole class burst into warm applause!

"Sure enough, it's Chen Xiao! Only he can answer it."

"This question is so difficult! I can't understand how Chen Xiao wrote the steps to solve the problem."

Just when Chen Xiao was about to walk down, suddenly there was some information in his mind.

[Influence +3, cumulative influence 3. 】

[Technology tree: medical biology (unlighted); physical and chemical machinery (unlighted); computer information (unlighted)…]

[Note: When the influence increases to a certain value, one point of future technology can be unlocked, and 20 points of influence are required to unlock the first technology. 】

Chen Xiao was a little confused.

Feeling itself is not only reborn to 1999, but also brings the future technology system.

How can we increase our influence?

I just came to the podium to answer the question in front of many people, which amazes everyone, which increases my influence.

If you get better grades in the whole class or even the whole school in the subsequent exams, will you be able to gain more influence?

In 1999, this was the eve of the big tuyere.

The stock market, real estate, bitcoin, and Internet technology have exploded. As long as any one of these outlets is caught, pigs can fly to the sky.

Teacher Liao applauded happily and said, "Chen Xiao, you can go down, remember to rest early in the evening, otherwise you will be uninspired in class."

Chen Xiao also wanted to gain some influence and said, "Teacher, I have another solution."

what!

Not only Teacher Liao, but the whole class was shocked!

It would be awesome to be able to write a solution to such a difficult math problem! Chen Xiao actually has a solution!

Shen Wei's hand was already frozen in the air, she looked up at Chen Xiao.

Su Qiao's face even more ugly, UU reading www.uukanshu. com He was still thinking about what happened to the solution just given by Chen Xiao.

Chen Xiao continued to write on the blackboard: "Solution 2: ... regard it as a quadratic equation of b. Since the equation has real roots, the discriminant is non-negative, that is, △=8(5d2-1)≥0..."

In five minutes, Chen Xiaoyang finished the second solution.

Teacher Liao was full of praise while looking at the second solution! This method is more ingenious and simpler than the first one, but the applied knowledge points are more solid and changeable. This time, Teacher Liao took the lead in applauding!

"Very good! Our classmate Chen Xiao is really good! Mathematics is not a simple calculation, but a way of thinking. Please actively learn from classmate Chen Xiao!"

The students were talking about:

"It's amazing! If Chen Xiao's English was better, he would be able to go to the top of the college entrance examination."

"The **** of mathematics! It's amazing!"

Shen Wei kept watching Chen Xiao return to her seat. She was playing with her fingernails and felt very uncomfortable. Why didn't she even know a solution?

[Influence +6, cumulative influence 9. 】

The buddies behind him, Jiang Wei, also gave Chen Xiao a thumbs up: "Xiaozi, you are really good!"

Teacher Liao continued to teach, but Chen Xiao did not listen.

He took out a notebook and recorded some important things on it. If the history of this world is basically the same as that of the world before him, even if the level of technology is not consistent, certain trends will definitely appear.

He recalled what he had learned from reading news, biographies, etc. before, and wrote down some important things: the establishment of Penguin, the free 361 antivirus software, real estate reform, Ali online sales, the birth of Pingguo mobile phone, the history of A-shares Several bull and bear markets…