As a digital being born from a high-dimensional world. The functions of the Universal Interoperability System, as its name suggests, can achieve true universal interconnection.

Theoretically, as long as it exists in thousands of worlds, it can enter into trade with each other. But this function requires a lot of energy to activate.

However, locking the host's health state and dealing with space-time turbulence consumes almost all of the system's energy reserves.

Now in order to unlock the full functionality of the Interconnected, it must grow with the host.

Therefore, Jing Changjia broadcasts well and absorbs energy, whether it is for himself or for the system, it is very important.

But well......

The system swept its own energy pool, which had bottomed out somewhat.

As long as it can be turned on, the energy reserve doesn't matter!

Its host is superb, and Hongchao's awareness of the host is very high. Every time you open the live broadcast, it will bring a lot of energy. It can wait a little longer. When the host is fully recovered, there will be a steady stream of energy to fill its energy pool.

The system calculated the future energy data, and without hesitation, he gave the only remaining energy in the energy bank to Jing Changjia.

The sleeping person's brow, which had been furrowed from pain, was unconsciously released.

Perhaps because the official broadcast effect was particularly good, the system did not hesitate to treat Jing Changjia with energy in the next few days. So much so that Jing Changjia's rehabilitation progress suddenly became a rapid progress, and even the doctor was a little shocked.

"Judging from the examination results, all indicators have recovered well and I can be discharged from the hospital." The doctor who had been in charge of Jing Changjia smiled and said, "Congratulations on regaining your health." ”

He handed over the thick stack of printed report sheets to Yang Heng, and told Jing's mother: "Although I have been discharged from the hospital, it is best to pay attention to my diet, and spicy and stimulating things still need to be gradual." The other thing is to exercise more at home, but don't overdo it. ”

"Okay, we'll all pay attention." Mother Jing nodded again and again, "You have bothered during this time. ”

"It should." The doctor gave a few more careful words before leaving the ward.

Mother Jing looked at Jing Changjia, who was standing steadily, and felt that the stone in her heart that had been hanging for more than a year had finally fallen to the ground. She opened her hands and hugged Jing Changjia hard, her eyes moistened and said, "You wait on the side." Mom packed up her things and went to the hospital to be discharged. ”

"I'll do it." Jing Changjia said.

"You sit! It's not all yet, what's running around? Mother Jing waved her hand, "Xiao Heng is optimistic about your brother." Oh yes, you call your mom, you won't be able to come after work today, and go straight to our store to eat and celebrate. ”

"Good!" Yang Heng said happily, "Auntie, don't worry, I will definitely keep an eye on my brother." ”

Jing Changjia couldn't help but smile and said, "Then you go to the hospital, I'll clean up in the room." Xiao Heng also stayed to help me. ”

Mother Jing looked at the two of them and hesitated for a moment before nodding: "Okay, don't run around obediently." Xiao Heng, you look at your brother, don't let him carry heavy objects. ”

After a long time, Jing's mother hurriedly left the ward.

Jing Changjia has lived in this ward for more than a year, and even if the family pays attention not to put too many personal belongings in the ward, a lot of things have accumulated over the year.

"The teapot, water cups, juice machine, and spare dishes and chopsticks have to be packed, and you have to bring your crutches too, so you can hold on if you run out of strength along the way."

Yang Heng muttered while rummaging through the cabinets: "That wheelchair was borrowed from the hospital, and I have to take it to the nurse's station to return it later." I've got all your notebooks in my bag. By the way, brother, look at the closet, is there still a lot of clothes. ”

Although he looks very similar to Yang Yiheng's little rabbit cub, compared to the current Yang Yiheng, he is really a too caring younger brother. Jing Changjia couldn't help but rub his head, and then went to the wardrobe as he said.

Yang Heng covered his head and snorted, and was about to protest loudly, when he saw the door of the ward being pushed open, and someone poked out his head with slightly thinning hair to come in.

Yang Heng was stunned and said, "Teacher Shang, why are you here?" ”

Teacher Shang pushed open the door of the ward and said with a smile: "When I received the news from the hospital at noon, I was in the Wuhe Campus, and I was in a hurry, but fortunately I caught up. Changjia, congratulations on your recovery. You probably don't know me, I'm a teacher at school, my surname is Shang, my name is Shang Xiping. ”

"Hello Mr. Shang. Thank you. Jing Changjia smiled and said, "The day I woke up, you also came to see me." ”

The one who comforted him that day and told him to recuperate with peace of mind and not worry about school matters was the teacher Shang in front of him.

"It's all as it should be. If you are injured at school to save people, the school will definitely remember you. Shang Xiping patted his hand, "There will be military training in half a month, you can rest at home, and you will report when they finish military training." If there's anything physically inconvenient, just tell me. The school will definitely take care of it for you. ”

Jing Changjia blinked, and smiled a little embarrassedly: "It shouldn't be inconvenient to raise it for more than a month." It is...... Mr. Shang, I want to change departments. ”

Shang Xiping was surprised: "Transfer? Why do you suddenly want to change departments? ”

"I woke up this time and suddenly found myself particularly sensitive to numbers." Jing Changjia's face did not change and his heart did not beat, "I have nothing to do during this time, and I have also studied all the courses of the mathematics department, I think I am more suitable for the mathematics department now." ”

Shang Xiping took a breath and did not answer immediately.

It's not uncommon in the world to hurt your head and suddenly become a genius in some way. This happened to a well-known mathematician who is now active in Buigo.

He heard about this kind of thing, and there was a disease called "Acquired Scholar Syndrome".

But meeting others and meeting one's own students are two completely different things.

Shang Xiping frowned slightly: "Have you checked your brain?" Is there anything uncomfortable? ”

"I've checked, and all the indicators are very good." Jing Changjia said softly, "Don't worry. ”

Shang Xiping sighed and nodded: "I want to transfer to the Department of Mathematics, why?" You see, you are in our computer science department, and you can delve into mathematics if you want to. For example, intelligent information processing, neural and cognitive computing, these are inseparable from mathematics. ”

"Mr. Shang, I just walked on the edge of life and death, and I have a different view of life." Jing Changjia said calmly, "Now that I have woken up and have such a talent, I want to build basic disciplines even more." Mathematics is the foundation of all science. ”

He hadn't turned around yet, but he was already sure that he would become a builder of mathematics.

Shang Xiping looked into his eyes and knew that this student would not be persuaded to come back.

He could only nod: "If you want to change departments, I can give you a place." But whether the mathematics department accepts you or not depends on whether you can be admitted. ”

As one of the top universities in Longxia, their computer science department is the trump card, but the mathematics department is the trump card of the trump card. Every year, there are many people who want to transfer from other departments to the Department of Mathematics, but the students accepted by the Department of Mathematics can be counted on one hand.

Jing Changjia wants to go to the mathematics department, but it is not so easy.

Jing Changjia asked with a smile: "Teacher Shang, is there any other way besides the exam?" ”

Shang Xiping was happy, and he joked: "If you can send a core SCI, the mathematics department will definitely find someone to ask me." But kid, those core journal reviews start in three months, and you have to transfer exams a month after the start of school. Don't think about anything else, prepare for the exam. ”

He patted Jing Changjia's arm, and when he saw Yang Heng silently sorting out his clothes there, he asked, "Are your parents not there?" I'm sending you home? ”

Before Jing Changjia could speak, Yang Heng had already said quickly: "No, someone will pick it up." ”

"Teacher Shang, don't worry, we've all arranged it." Jing Changjia hurriedly said.

"Then I'll be relieved."

At this time, Jing's mother also completed the formalities and returned to the ward. As soon as the two elders met, they naturally chatted a lot excitedly. Shang Xiping took the first step in the urging of the phone.

The three of them went down to the hospital building with large bags and small bags, and Jing's mother explained: "There is a chef in the store who is sick and didn't come today, and your father can't leave." Shall we take a taxi back? ”

"It's okay......"

As soon as Jing Changjia answered, Yang Heng jumped up: "Someone really picked it up!" He looked around for a moment, and immediately smiled: "Look over there." ”

Outside the inpatient building was a large garden, and at this time, where Yang Heng was pointing, a black business car was slowly coming. The car pulled up to a halt in front of them, and a familiar figure stepped out of the cab.

He's extremely tall and has better proportions. The simplest black T-shirt is worn on him, like a master's tailor-made runway outfit.

Jing Changjia was a little surprised: "Why are you here?" ”

"I saw that Xiao Hengfa's circle of friends said that you were discharged from the hospital, so I came to pick you up." Feng Zhaoye naturally took the small bag in Jing Changjia's hand, "Congratulations on recovery." ”

Jing Changjia always felt a little weird: "When did you and Xiao Heng have such a good relationship?" ”

Feng Zhaoye just smiled: "There is a bag on the co-pilot, you can see if you like the contents or not." ”

Jing Changjia raised his eyebrows: "Discharge gift?" ”

"Not really." Feng Zhaoye said, "You know it when you see it." ”

Jing Changjia opened the passenger door, and sure enough, he saw a large cloth bag on the chair.

When I opened the cloth bag, I saw that the first thing was a set of "Algebraic Geometry". Further down are "Lectures on Differential Geometry", "Cross-Section Algebra and Discrete Sphere Theory", and "Average Curvature Flow...... There's even a book called Ideals, Clusters, and Algorithms.

"......" Jing Changjia couldn't help but smile, "I don't know, I thought you were the teacher who came to give me homework." ”

Feng Zhaoye also smiled: "You learn computers, I don't know if you have these books." I can only buy you a few copies at random. ”

"I've been stuck in my mind lately. Past experience has taught me that when we can't move forward in computing, it's a good idea to go back and consolidate the foundation of the discipline. He picked up the set of "Algebraic Geometry" and shook it at Feng Zhaoye, "I need it very much, thank you very much." ”

Yang Heng originally expected it to be a pack of games, but it turned out that there were indeed one book after another that made him dizzy even when he looked at the title. He slumped in the back seat □□, "I don't understand you." What is there to study in mathematics? There is no point in wasting time. ”

"It really doesn't make sense." Jing Changjia said, "Most of the time, you don't have anything but scratch paper in one place. ”

Yang Heng said proudly: "That's right! You shouldn't waste your time! ”

Feng Zhaoye chuckled.

He put his luggage back in the driver's seat and said, "A lot of times people chase the truth, not for meaning. Just by proving it, we have the key to connecting algebraic geometry and topology. As a result, the boundaries of human cognition will be widened. Don't you want to promote the development of human civilization with your own hands? ”

Yang Heng thought about it, and his heart was a little hot. But when he looked at the book in his brother's hand again, the flame was suddenly extinguished.

"Sounds great, but it's all a math trick. Once you step into it, you can't push it a little in this life! Yang Heng lay on the back of the passenger seat, "Brother, do you want to push the door?" ”

Jing Changjia smiled and put down the book in his hand.

Do you want to promote the development of human civilization with your own hands? Of course.

Otherwise, what is he exchanging with the system to get ten years of time in the next world?

But is it just for this?

Jing Changjia thought about it seriously before saying, "The truth is there. The thought of it being there makes me can't contain my curiosity. ”