Chapter 1

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"From the above results, it can be seen that when the precision is insufficient, it is wrong."

"Okay, that's all for today. It's already 12:03, which is 3 minutes past the time limit." Old John, the off-get off work expert, saw that the live broadcast time was up. Although he didn't make his original progress, he still prepared to go home happily.

Old John originally wanted to click the cross and end the broadcast, but thinking that there were real audiences in the live broadcast room after all, he imitated the tone of the host in the live broadcast he had watched before.

"My live broadcast time is from 6:00 am to 12:00 pm every day. Tomorrow I will continue with today's progress. Interested viewers can click to follow. If you like this live broadcast room, please help me share it with others..."

Old John paused for a moment, not knowing what to say next. After thinking for a while, he said, "I hope to see more students tomorrow."

Just when Old John was about to end the broadcast, a gift appeared on the live broadcast interface.

jr123ew gives away 1 rocket.

A small rocket special effect flashed across the interface. Old John had never seen this special effect before. He paused and watched it for two seconds, but did not end the broadcast immediately.

"Thank you, Mr. John. I will come to class on time tomorrow." jr123ew posted a comment.

Before Old John could say anything, a lot of gift prompts appeared on the interface.

Postgraduate entrance examination candidates will receive a gift of 520×1 from Kaoyanhun555.

Please bless this believer with blessings and let her reach the shore this year and receive 10 love letters.

jdgeueb147 gave away 5 small frogs.

The live streaming platform chosen by Old John is a newly popular platform. There are all kinds of gifts, including rockets for 100 yuan each, 520 worth 5.2 yuan, love letters for 2 yuan each, and little frogs for 1 cent each.

Each gift has its own special effects. The little frog that costs one cent disappears in a flash, while the rocket that costs 100 yuan can pause for a few seconds.

Old John was confused, because in the live broadcasts he watched, no host received any gifts. He thought there was a problem with the interface and all sorts of random patterns started to pop up.

Old John came out to ask Jiang Qi for help.

"A lot of strange patterns suddenly popped up on my live streaming interface. Is my computer infected with a virus? Would you like to take a look?"

Jiang Qi was watching the live broadcast on his phone and quickly explained: "It's not poisoning, someone sent you a gift."

Old John then asked, “Should I thank them then?”

"You can thank them." Jiang Qi nodded and reminded, "Just say thank you for everyone's gifts. You don't have to spend any money."

Don't ever say thank you to my friend for the rocket.

Old John returned to the room, and there were already a lot of comments in the live broadcast room.

"Thank you Mr. John for your lecture~ Mr. John has worked hard~ I will share the live broadcast room with my classmates~"

"Thank you Mr. John for your lecture. Mr. John, you have worked hard. Mr. John, can you teach me about Fourier tomorrow? Please!"

"Thank you Mr. John for your lecture~ I want to listen to partial differential equations tomorrow~"

"Thank you Mr. John for your lecture~ The live broadcast has been shared~ Let's solve the partial differential equation together!"

"Thanks……"

Everyone chose the jr123ew format without any prior agreement. For a moment, the screen was filled with messages thanking Teacher John for his lecture, as if they were receiving red envelopes with passwords.

Old John is not an inflexible person. As long as he can gain reputation points, he can be flexible in the scope of his lectures.

Old John thought for a moment and said, "If everyone wants to hear about partial differential equations, I will talk about this part first at 10 a.m. tomorrow. I haven't finished the relevant PPT yet. If it's not done, I will add another shot and write it by hand."

After saying this, Old John decisively went off the air.

It's already 12:18, seriously overtime.

Old John, who ended the live broadcast early, did not see the wailing of people asking for Fourier, Taylor's formula, and composite functions in the live broadcast room.

The 31 people in the live broadcast room howled like 3,100 people.

After the live broadcast, Old John felt relieved and for the first time took the initiative to ask Jiang Qi about the star upgrade progress.

Jiang Qi clicked on the character card and saw: 13/100.

Pretty good star upgrade progress.

There were far more than 7 people speaking, but with such a small audience base, gaining 7 reputation points is already a very good result.

You know, Old John only got 6 points in such a long time!

Upon learning that his reputation value had increased by 7 points, Old John became enthusiastic about the live broadcast. Seeing that Huang Fugui's lunch was not ready yet, he went back to the room to continue working on the PPT.

What Jiang Qi didn't know was that the person who was frantically asking Old John to talk about Fourier in the live broadcast room was a junior from his alma mater.

The unlucky junior thought that the reason why the mysterious teacher John in the live broadcast room did not choose to talk about Fourier the next day was because he recharged slowly.

The unlucky junior originally came to watch the gaming anchor.

As a postgraduate entrance examination candidate, the unlucky junior gets up at 5:30 every morning to memorize words. After memorizing until he is awake, he goes to the cafeteria to eat breakfast. After breakfast, he goes back to the dormitory to practice questions. His life is very regular and his only entertainment time every day is meal time.

The unlucky junior has a favorite game anchor who recently switched to a new live streaming platform. This game anchor is a well-known night owl and often broadcasts live all night until the next morning.

But today, unfortunately, the night owl anchor did not stay up late, so the unlucky junior just watched it casually. There were hardly any people live at six in the morning. At first, when he saw Old John's high-level math teaching live broadcast room, he thought it was a scam robot selling courses. He wanted to click in and curse before leaving, but he never came out after entering.

Because the unlucky junior had already reviewed the part that Old John talked about, he was just hanging out in the live broadcast room to practice questions and watching for a while in his free time.

At first, he really thought that this live broadcast room was jr123ew's one-on-one teaching live broadcast room. He also thought that those who take the postgraduate entrance examination these days are really rich and can afford to hire such a good teacher in advanced mathematics. How much does a teacher of this level cost per hour?

Then he discovered that the mysterious host of Old John JS was actually just a bored and selfless university teacher.

What a touching spirit of dedication!

What an excellent university teacher!

At that moment, the unlucky junior realized that Old John JS meant Old John Professor. Why didn’t he react to it earlier!

When the first person was sending gifts, the unlucky junior wanted to send gifts too. When he was recharging, everyone had already started queuing up to send comments. When he finished sending comments and recharged, and when he was ready to send gifts, Old John went offline.

One step down, every step down.

The unlucky junior spent more than ten minutes in the dormitory being emo, turning his sadness into passion, clicking on the post bar, forum and confession wall, and began to strongly recommend Old John's live broadcast room.

Then the whole thing was deleted and banned.

The administrator was still complaining to his friends: "It's really strange. How come there are so many postgraduate entrance examination scammers these days? I have deleted and banned two scammers in the past two days. It seems that they are from the same group. Why did these scammers target our school?"

"I think students are easy to cheat." said my friend with a smile.

On the other side, Jiang Qi and his friends had already started eating.

Huang Fugui cooked grilled steak again for lunch, but changed the recipe. The steak was cooked to perfection this time, but the marinade was not good enough. The piece Jiang Qi got tasted like roast beef without much seasoning, and it was tasteless. In the end, he had no choice but to go to the kitchen to get ketchup to dip the steak in.

"Uncle Huang, I don't think it's appropriate for you to challenge such a difficult dish as grilled steak all at once. Why don't you try something easier?" Jiang Qi suggested sincerely.

"I think so too." Huang Fugui was also eating with ketchup. He took out his phone to show Jiang Qi his newly discovered recipe tutorial. "I decided to try this tomorrow."

Jiang Qi took a look and saw crispy roast chicken.

"…I think, how about making it easier?"