Number theory is a pure theoretical mathematics research and belongs to the branch of pure mathematics. Even students majoring in mathematics will not be exposed to number theory in most colleges and universities. Only after further studies can they have the opportunity to come into contact with this special field of mathematics.

Although the scope of this field is not narrow, and some interesting examples of number theories are also interesting (well... Of course, in the eyes of most people, those examples are completely uninteresting), it is undeniable that number theory is a very, very, very profound and difficult field. If you want to ask some difficult questions in this field, it will be so difficult for people to cry.

Mathematics teacher?

Sorry, no matter how many years you have taught in middle school mathematics, number theory is definitely a profound thing that can handle almost all middle school mathematics teachers in the world.

Not to mention, Yang Jin took a brief look and had a b-digit in his mind - the question on the question in front of him is really... super difficult!

"Hey, Xiaochao." Yang Jin decisively hung up the phone to the audience outside the venue: "It's troublesome. It's too difficult to have a number theory problem. If you can't solve this number theory problem, you will completely fail if you sneak into the task. At my level, you may also want to solve this problem... Well? Do you have a way? Tell me quickly!"

It's really a turnaround. It's worthy of being a high-end professional. What other reliable ideas can you provide at this time?

Uncle Chao muttered with his tongue wide, and Yang Jin immediately followed the instructions of the old man black hard to operate step by step.

"First of all, connect to the Internet on your mobile phone...how do you turn on the traffic? I think, um...oh, by the way, it's OK to open it like this, connect it!"

After passing the first level, Yang Jin couldn't help but breathe a sigh of relief.

"Then, download a 'Where can't scan the smart learning app'... What to download a? From? From the Internet? How to download it? ... Yes, I usually don't use my phone except for calling and sending text messages. My son helps me... Don't be excited, just say it slowly! What is the application? Store? Where do I go to find the store now! What... Oh, I found it, just click to download it? Wait a minute... I'll download it!"

Huh... Yang Jin wiped the sweat from his head. He felt that downloading things in a hurry just now was the most difficult step in all operations.

"Finally, open the app, scan and identify the question..." Sure enough, the next step is much simpler: "Hold up your phone, scan the question face, and then wait for the answer to it..."

"How about Brother Yang?" Uncle Chao recommended his heart in the proud tone of Columbus' announcement that he had discovered a new world: "I tell you that Brother Yang, you have to keep up with the times and not fall behind. The software now is simply too convenient. Isn't it just that I can't do math problems? I can get the answers with just a scan. When you teach in the future, remember to don't let children take advantage of loopholes, hahaha! By the way, Brother Yang, has the answer come out?"

Brother Yang, opposite the phone, was silent for a moment, with a bit of gloomy and depression in his voice: "What kind of dog do you recommend is this... Forget it, huh, are there any other means? For example, in the movie, when I used my glasses to pass it, the think tank at the headquarters immediately started to brainstorm and brainstorm?"

"Yes." Uncle Chao said affirmatively: "The glasses you are wearing now are. I turned off the function and can be turned on at any time. However..." Uncle Chao's voice became cautious: "As long as you link the database, the headquarters will immediately know where we are and what we are doing, and we will no longer be in a subtle state. If the headquarters knows our information..."

"Will the secret be leaked?"

"The possibility of leaking secrets is not high, but the possibility of embarrassment is extremely high."

On this side, Yang Jin was silent.

Once the headquarters is called and uploaded to the headquarters data center, the headquarters will immediately find two old men sneaking to the front line and trapped in front of a math problem. Disrupting the action plan? Exercising all the effort to rescue? Causing a chain reaction? Yang Jin can think of all this. Once such a situation really happens, no matter how much impact it will cause in the future, the name of "an old thing overestimating one's ability and causing trouble everywhere" cannot be erased.

Indeed, he didn't care about the name.

Indeed, nothing is as important as life.

For a little pitiful self-esteem, a wise man will not take such a safe and secure way of action. But... why don't you want to take a safe way at this moment?

Yang Jin took off his glasses, closed his eyes and pinched his nose, and countless scenes flashed through his mind. The past, more past, and more past, those treasure-like memories came in waves. The pride of being a father, the confusion of being a father, the responsibility of being a father, the powerlessness of being a father, and the father, finally struggled.

Drip, Drip, the timer on the screen runs through seconds, and the whole hour and a half of the problem-solving time does not seem to be very nervous, but facing the number theory problem in front of you, one and a half hours is only enough for a number theory scholar to brush his teeth and open his appetite.

This is really a very difficult question.

But... why is it suddenly a burst of passion that suddenly burns like a ignition?

"I will contact you within an hour. If something goes wrong, come and save me." After calmly arranging the way out, Yang Jin hung up the phone. He pursed his lips, but said silently in his heart: "Xiaoqi, there is a saying that my father is proud to say to you many times. Today, I might as well say it again: At that time, there were only three people in the entire county who could get into undergraduate courses. And your father, I, have the highest score. No matter how big the place is, there was no popular score at that time. But now it seems that I am at least the top scorer in the county in the college entrance examination."

"The top scorer in the county in the college entrance examination is nothing, but there is one thing that makes me more proud than the top scorer in the county. My teacher was labeled as a rightist during the Cultural Revolution, and was beaten from Beijing to the local area, and finally fell to university to teach, which looked very inconspicuous. But only a few of his beloved disciples who were very beautiful knew that he was actually the apprentice of the great mathematician Hua Luogeng. That is to say--"

Hua Luogeng is my master.

Chen Jingrun is my uncle.

Although I was later arranged to teach middle school in a small city for some political reasons, I also had highlights, dad.

I once loved mathematics so much, studied hard in college classes, and dug deep under the guidance of my teacher. I was once praised by my teacher for having superhuman understanding and perseverance, and there is definitely a lot to do along the way. I once entered the palace of number theory research under the guidance of my teacher, and I also got a note from my uncle - Oh, I remember it, Stephen Evinson, this familiar name was seen from that note.

Uncle Master once met Stephen Evinson at the International Mathematician Conference and had a brief discussion.

There is no record of the outcome of the competition, and there is no victory or defeat in the world of science. But the pride between the lines cannot be covered.

So—swish, Yang Jin opened his eyes and his eyes became cold and sharp again.

Looking at the topic in front of me, the long-standing memories settled in the depths of my heart rolled up and burst like bubbles, crackling and bursting.

Even if they pass this question back to the so-called think tank, can they solve it?

Even if I don’t pass on the question back and ask for help, can I, Yang Jin, really not be able to solve it?

Looking back, all the things used on the boss stand next to him were ready. There were paper, pens, tools, and no debris. Yang Jin turned around and sat down on the table and began to write quickly.

It was just right to sit high, the light was just right, and the pen and paper felt just right. It seemed that although Stephen Evinson had fallen into the so-called dark night emperor, he never forgot his pride and self-sustainment as a mathematician.

OK, very good, in this thrilling calculation, Yang Jin suddenly regained his feelings when he was in college. At that time, the conditions were difficult and the summer was sweating profusely, but when he was lying on the table and writing hard, his eyes were filled with excitement and fanatical light. It seemed as if he was fighting with peerless masters, as if he was talking to his fellow practitioners. The calculation symbols in front of him became the most wonderful notes in the whole world.

The color faded, the body was eliminated, the time was forgotten, and everything was left without any more. All that was left was pure mathematics and pure persistence.

Time passed little by little, and the threat of death was getting closer. However, Yang Jin's hands were still stable and his eyes were still sharp.

No, it is not still sharp, but it is even sharper. It is like a magic sword rusted by time, which has faded away the rust bit by bit during strict polishing and regained its sharpness.

Detonated on the spot?

Go to your mother-in-place and explode!

It's almost there, I feel the trembling from the soul, the excitement from the bottom of my heart, the pleasure that runs through my whole body, this question is about to be solved!

the_zone, open!

the_seed, open!

the_lock_of_dna, open!

Today, I, Yang Jin, are about to break up this number thesis!!!

Scream————

"Dad!" Suddenly, a familiar voice came, calling Yang Jin, who was about to discharge light in his eyes, back to his senses. He withdrew from the state of supermathematicians. Yang Jin raised his head in a daze, and then was shocked to find that his white-haired daughter was standing next to him. No, it was not just a question of standing next to him, she was simply walking out of the secret door she wanted to open.

"You..." Yang Jin asked blankly: "Why are you here?"

Yang Qi asked back: "Why can't I be here?"

"That Stephen Evinson..."

"It's done a long time ago. I was cleaned up three days ago and I was obedient. Agent Okamoto's level is getting higher and higher, so it's not too much for us to find someone this time."

It was already done, it was already done?!

Yang Jin's eyes were straight.

I've done this, is it useless?

No, it's not just useless work.

Yang Qi was not as joking as usual, but she looked very serious: "Dad, why did you appear here? Being kidnapped? Being coerced? Being deceived?"
Chapter completed!