It was the second day that Ren Baqian had seen Qing Lian.

In fact, thirteen days ago, Ren Baqian knew that the team had passed through Pingcheng, and only learned that Qing Lian was in the team last night.

Ren Baqian saw a graceful woman waiting in front of the school gate early the next morning.

The time to summon Qinglian was arranged this afternoon, but when he saw her, Ren Baqian understood in his heart that he would get to know her first. After all, he was a student of his own, and Ren Baqian didn't say much, so he let him in.

The two sat down and Ren Baqian looked at his heart. After more than a year of rebel career, there was not much change. His skin had not turned darker and he had not become firm. He seemed to be the literary woman at that time.

"Master of the House! I'm here to return the books!"

Qinglian has a wide forehead and a little big mouth, but these are not flaws on her face, and she smiles very beautifully. The most important thing is that she has a temperament similar to a student, which is rare in this world.

Ren Baqian brought several books, three of which were mathematics and two were probability studies.

One of them also involves calculus.

It is quite profound knowledge about this world.

Well, it’s quite complicated on Earth, and I don’t know how many people are dying of ecstasy.

Anyway, Ren Baqian knew that it would be no less difficult than defeating the Empress by wanting to pass the exam.

"Did you understand?" Ren Baqian had a kind smile on his face, his heart full of malice, allowing you natives from other worlds to see the power of "calculus".

I originally thought of locking my students in the classroom in a few years and letting them pull their hair down in the face of the calculus, but I didn't expect that someone would see it in advance now.

"I understand most of them, but I don't understand one thing very well. I'm about to ask the head of the mansion! There is always a place I haven't figured out about the fixed point theorem..."

Qing Lian said that, and took out a wooden board to engrave numbers on it with a hairpin:

"It is here that if F is a continuous mapping from the sphere to the sphere itself, then there must be a point c, such that F(c)=c or –c. That is, F either has a fixed point, or a point maps to its opposite path..."

The smile on Ren Baqian's face suddenly frozen.

The terrifying memory dominated by calculus appeared in my heart again, with a burst of toothache and the urge to pull my hair down...

Oh, no hair now.

"Stop!" Ren Baqian quickly stopped him and said with a strange expression: "You are back today to take the exam, right?"

"How can I do it? I am also a student of the head of the mansion. Today I am here to ask for advice. Regarding this question, I think no one in the world can answer me except the head of the mansion!" Qing Lian said with a blink of an eye.

I thought about the reason why Ren Baqian refused him at this time. The reason Ren Baqian said was the real chance of 30%, the probability that he could not answer was 50%, and the other probability was 20%...

In other words, Ren Baqian has a 50% chance of answering his own questions.

The probability of meeting other people who can answer this question within three years is one in a million, the probability of this is one in ten years is one in ten thousand, and twenty years later, the probability is one in a hundred.

This probability increases with time, which means that you are likely to meet someone who can answer your questions in twenty years... It's been too long...

It still has to rely on Prince Zhao.

Ren Baqian inexplicably got goosebumps all over his body. He suddenly felt that Qing Lian's calm expression... maybe it was a devil?

Ren Baqian will never touch calculus again!

But at this time he couldn't admit defeat.

"The class of students you know will graduate in two months. After graduation, some of them will continue to learn more advanced knowledge. If you can give up everything and return to the institution, I will talk about calculus uniformly.

I borrowed your books to see how sincere you are in your studies, but now, what identity do you ask me for advice?” Ren Baqian felt that he had found this excuse very well. After all, she is no longer a student of the institution, but a military advisor of a rebel army in Daxia.

You are not my student now, so I naturally won’t answer such a profound question as you.

Well, this reason is not very good, but Ren Baqian couldn't think of a better reason at the moment and could not show his timidity.

Qing Lian was stunned for a moment, then pursed her lips and smiled. "I was rash."

Then he smiled very brightly and made a request that was 87% possible to succeed after calculation: "In order to better communicate with Dayao, Su Duke wanted to send an envoy to Lancheng. If I want to deal with some things, I will be the envoy. At that time, the head of the mansion must not refuse me to go back to the mansion to study."

Ren Baqian exclaimed in surprise: "Send envoys? In what name?"

Su Gong was Su Qing, and he established himself after the uprising. Although the rebel army had reached a scale of one million people, it was still a peasant uprising army. It was normal to get some help from Da Yao, but it was necessary to send envoys to Da Yao, which was more interesting.

"In the name of King Ping!" Qing Lian said with a smile.

Ren Baqian gently tapped his fingers on the table and thought in his mind.

In the previous two battles between Daxia and Dayao, they almost lost all their vitality. In addition, corrupt officials were entrusted with heavy taxes, and among them, the Infernal Affairs sent by Su Qing, many places were in vain.

Su Qing started with the slogan "Equal rations!", which swept over a large number of people who were about to survive. In addition, the lack of soldiers at Daxia at that time became a climate in a short period of time.

But although the elite soldiers of Daxia were almost completely damaged, there were still many powerful generals in the court. They had trained a group of soldiers who could fight in one or two years. Although they lost half of the country, they gradually stabilized their positions. At this time, the two sides were in a state of tug-of-war, and it was unlikely that there would be too much breakthrough in a short period of time.

In this case, Su Qing wants to become king!

Ren Baqian thought about it and found that when it was difficult to enter the country in a short period of time, becoming king was not the best way, but it could also help calm people's hearts.

If you send envoys to become king, it would be reasonable.

"As for more, I will talk about it when I meet Your Highness in the afternoon." Qing Lian gave a slight salute.

Ren Baqian nodded. In the afternoon, he met as an envoy, and he was the minister at that time.

And now, it is indeed a private person.

Unfortunately, what calculus points are mentioned if you have nothing to do?

"I want to borrow a few more books to read, but the head of the mansion will not refuse me, right? The head of the mansion also said that he had the sincerity of seeing me study..." Qing Lian said, pulling the hair in his ear.

"Go!" Ren Baqian waved his hand.

"Take your plank away!"

"Let's leave this here. If I don't understand it when I come back in the future, I'm still waiting to return to the school's back home to answer my questions!" Qing Lian bowed again and then retreated.

Ren Baqian sat on the chair and looked at the wooden board symbol, and felt that both Nao Ren and Yahuazi began to hurt.

After Qing Lian left for a long time, Ren Baqian took the wooden board out, dug a hole, and buried the wooden board inside, and felt that he finally felt a little more relaxed.

Sitting back to the office, Ren Baqian began to fall into thought.

Although Qing Lian had learned academic numerology before, at most it was at junior high school. When she arrived at her, she systematically learned geometry and algebra in modern primary and junior high schools. Unexpectedly, she has learned calculus now...

No one taught her that she taught high school and college mathematics by herself... and she had a very high level.

This is another snail!

It has to be admitted that there are always some people in the world who are loved by heaven and earth.

For example, the empress is in martial arts, Ning Caichen is on Earth, and this Qing Lian...

Um?

Something suddenly came to mind in Ren Baqian's mind.

Ning Caichen and Qing Lian?

I know two sword masters myself? They all have such high talent? Isn’t it a coincidence?

All geniuses were encountered by themselves?

Ren Baqian suddenly remembered what he had seen. A thousand years ago, there was a magnificent period when thousands of sword masters were born and fought against each other, leaving behind a considerable reputation.

However, that period was too long and the records were vague, so he didn't think much about it.

And after that, the sword master was forbidden from entering the court to become an official.

The reason is very simple. The sword master needs a lot of resources to build a sword washing pool, so the possibility of embezzlement and bribery is too great!

Moreover, for the sake of his own life, the Sword Master had to spend a lot of energy to acquire Qizhen, and even searched for it in the barren mountains and forests for a long time.

Naturally, it gradually became less eye-catching.

However, after Ren Baqian had a little doubt in his heart at this time, he suddenly woke up a question.

How many famous Divine Wheel Warriors from thousands of years ago were recorded in history books? I am afraid that even the disciples in their own sects may not know it.

Thousands of years, dozens of generations, are too long.

The sword master does not have a long lifespan, and there are very few people with the power of the divine wheel, so the number is definitely smaller than that of the warriors.

In this case, it is not just because of strength that can leave a lot of money in history?

Could it be that the sword master's skill is wrong? Although he cannot practice martial arts, his talent in other aspects is far superior to ordinary people? If that is the case, it would be a bit scary!
Chapter completed!