Mathematics

With the computing power Han Yang currently possessed, after accounting for all consumption, he could simultaneously listen to lectures from about 10 teachers non-stop for 24 hours.

Calculating based on one class per hour, Zhi Xue Web would need 240 teachers giving lectures to meet Han Yang's needs.

Based on a procurement price of 400 yuan per class, this would mean spending 96,000 yuan daily.

"No, no, that's too expensive. I can't afford to spend that much at this stage."

The money earned from the 99 computers doing power leveling was all hard-earned, penny by penny. Even at full capacity, the daily income was only a little over 70,000 yuan, which couldn't sustain such spending.

"Also, once General Manager Lu's equipment arrives, I'll have to allocate computing power to manufacture materials myself. Furthermore, computing power usage can't always be maintained at a high level. Considering this... let's start with 20 teachers initially, 20 classes a day, costing 8,000 yuan. When my computing power increases and I earn more money in the future, I'll scale up."

If he could only study 20 courses simultaneously, choosing which specific courses to study required careful consideration.

Although Han Yang intended to learn the entire knowledge system, there was still an order of priority. He would prioritize learning the most important subjects first.

After some thought, Han Yang made a decision.

At this stage, besides computer knowledge, the most important subject for him was mathematics.

Mathematics was the foundation of all natural sciences and held an unparalleled important position.

Mathematics had numerous classifications. At this stage, Han Yang could only temporarily select a few branches of mathematics courses that were highly relevant to computer science to study.

After thinking for a moment, Han Yang decided on 10 courses including Vector Algebra, Analytic Geometry, Series Theory, Ordinary Differential Equations, Mathematical Statistics, and Stochastic Processes.

According to normal university course arrangements, these subjects would require at least a full semester, or half a year, to complete. Some even required four semesters.

Even after completing them, he would have only learned some preliminary concepts. If he wanted to delve deeper into research later, there would be plenty of torturous material.

But Han Yang was naturally not afraid.

After initially deciding on 10 mathematics courses and 10 computer courses, Han Yang immediately contacted Zhang Dong, hoping to ask him to help invite teachers from Yunshan University who could offer corresponding courses to join the website. However, he couldn't get through when he called, so he had to try again later.

At this moment, Zhang Dong's home was filled with gloom.

Zhang Dong and his wife sat on the sofa, facing a woman with graying hair and a haggard face.

The woman looked to be over fifty years old. But Zhang Dong knew that she was only 45 this year, the same age as him.

"Xiao Juan, don't be too sad."

Zhang Dong's wife gently comforted her, "Old Li just couldn't handle the blow for a while. Let Zhang Dong try to persuade him again after some time, he'll eventually cheer up."

Xiao Juan cried, "I work hard every day to earn money to support this family, but what about Old Li? He's drunk all day, and when he's drunk, he curses everything, curses the school leaders. I can't live like this anymore.

Brother Zhang, you and Old Li were good friends in college, and after graduation, you both became teachers at Yunshan University. Your relationship is the best. Please go and persuade him, tell him to stop drinking. It's okay if he lost his university professor job, I don't mind him. As long as he can pull himself together, find a job, and live a good life, this home will still be a home.

If he continues like this, I really can't stand it anymore. I'll take the child and divorce him!"

Zhang Dong sighed deeply.

Old Li's name was Li Hui, and he had always been his close friend. However, he was in the computer science department, while Li Hui was in the mathematics department.

Both of them taught at Yunshan University, but Li Hui had bad luck. One time, he happened to encounter a male student bullying a female student and stepped forward to stop it. It turned out that the male student had a background, with connections powerful enough to vaguely reach the Ita. After a series of slanders, it was twisted into Li Hui bullying the female student.

Now, his job was gone, and he was labeled a molester.

Li Hui couldn't bear the blow, and coupled with being banned from the education sector, he became completely dejected.

Zhang Dong wanted to help him, but he was truly powerless.

"Alas. It's a pity, Manager Han only wants lecturers from the computer science department, not the mathematics department..."

Sighing inwardly, Zhang Dong comforted her, "Okay, Xiao Juan, I'll go and persuade him."

After settling this matter, Zhang Dong finally had the presence of mind to take out his phone. He immediately saw two missed calls from Han Yang.

"I'll make a call."

He walked into the study and called back.

Han Yang's voice immediately came through: "Professor Zhang, it's like this, do you know any teachers in your school's mathematics department? Our website wants to purchase ten mathematics-related courses and needs ten mathematics teachers..."

Zhang Dong froze there, feeling his heart pounding uncontrollably.

Being over forty years old, how could he not understand that simple comfort and persuasion were completely useless?

Could Li Hui's knot in his heart be untied with a few words of comfort and persuasion?

Impossible!

There was only one way to untie his knot, and that was to give him a job again that could give him a sense of self-fulfillment and value.

Originally, this was an unsolvable problem because he was just an ordinary person. But now, the opportunity to help his long-time close friend get back on his feet appeared before him without any warning.

Zhang Dong carefully organized his words and said somewhat humbly, "Manager Han, I happen to know a mathematics professor. His professional knowledge is absolutely solid, you can rest assured about that. It's just...

He was expelled from the school. But he was slandered! We've known each other for decades, I can testify!"

Zhang Dong recounted Li Hui's story.

Han Yang immediately agreed: "Okay, no problem, have him produce the first class as soon as possible, and we'll evaluate it quickly!"

After hanging up the phone, Zhang Dong clenched his fists, full of excitement.

Walking out of the room, Zhang Dong didn't say a word and immediately rushed to Li Hui's house.

In the middle of the day, Li Hui reeked of alcohol and was sitting on the balcony in a daze. There were empty wine bottles everywhere in the house, and trash all over the floor.

"Li Hui! Do you still want to be a teacher? Do you still want to teach mathematics?"

Li Hui raised his head, looking at Zhang Dong blankly, and smiled somewhat self-mockingly.

"If you still want to teach mathematics, then pull yourself together immediately! Now, shower, get a haircut, shave! Get him a clean set of clothes to change into, and start preparing your lessons right away!"

It was already evening when Li Hui stood in front of the phone camera. Now, his hair was cut short, no longer messy, and his beard was completely shaved off.

He was wearing casual clothes, holding chalk in his hand, with a blackboard behind him, just like an ordinary teacher.

Outside the camera, Xiao Juan, Zhang Dong, and Zhang Dong's wife watched him with eager eyes. Their fervent gaze gave Li Hui a very strange, yet somewhat familiar feeling.

Facing the camera, he was slightly nervous.

"A stochastic process, so-called, is a branch of probability theory..."

Clearing his throat, he began his first lecture after being away from the podium for several years.