Xueba starts with change

第177章 (3Xn+1)2^m=1
Coming out of the library, Chen Zhou and Yang Yiyi were walking back to the dormitory.

When the two reached the nameless lake, they both stopped unconsciously.

Under the illumination of the lights, the Wuming Lake has a unique view.

Chen Zhou turned his head to look at Yang Yiyi, and said softly, "Yiyi, shall we walk along the Wuming Lake?"

Yang Yiyi nodded: "OK."

Chen Zhou took Yang Yiyi's hand, and the two walked quietly by the nameless lake.

Objectively speaking, Yanda University is not only a top school in China, but its campus scenery can also be regarded as one of the most beautiful universities in China.

After all, there are many antique buildings on the campus of Yanda University, and they also have certain historical significance.

Take Yan Garden as an example, it was the Spoon Garden in the Ming Dynasty at first, and later the royal garden in the Qing Dynasty.

Now it has become the campus of Yanda University.

The most famous thing in Yan University is the Wuming Lake where Chen Zhou and the two are wandering around.

Together with Yabo Tower and Yanda Library, it is called "One Tower Lake Map".

If you wait until the lotus blooms, the whole lakeside of the nameless lake will be full of fragrance.

Coupled with the Yabo Tower on the shore, it towers into the sky and stands majestically, as if guarding the mountains and rivers.

The movement of the nameless lake is matched with the stillness of the Yabo Tower. The lake is dynamic and the tower is quiet, the lake is soft and the tower is firm, and the tower and the lake complement each other.

Chen Zhou pointed to the Yabo Tower in the distance, and asked softly: "Yiyi, do you know what this Yabo Tower used to be?"

Yang Yiyi glanced at the Yabo Pagoda, which was imitated from the ancient tower of burning lights, and said with a smile: "Of course I know, it was originally used as a water supply tower."

Chen Zhou nodded lightly, and asked again: "Then do you know the meaning of Yabo Tower and Wuming Lake?"

Yang Yiyi thought for a while, and replied: "Yabo Tower means liberal arts, and I don't know about Wuming Lake."

Chen Zhou stopped, looked at the Yabo Tower in the distance, and said slowly: "Before the Yabo Tower, he begged for liberal arts, and swore to be famous by the nameless lake. Their meaning is to swear at the nameless lake and become a liberal man."

Yang Yiyi looked at Chen Zhou with a smile: "Okay, okay, I know you are a master of Chinese and literature."

"Hey." Chen Zhou smiled embarrassedly.

Yang Yiyi glanced at Chen Zhou, and asked softly, "Is there something on your mind?"

Chen Zhou shook his head, nodded again, but did not speak.

Seeing this, Yang Yiyi said softly: "About the subject?"

"Yeah." Chen Zhou nodded, "Today's small class, Professor Zhang taught a math game, which can be regarded as an enlightening class."

Yang Yiyi asked, "What game?"

Chen Zhou: "Hail conjecture."

As smart as Yang Yiyi, she naturally understood what Chen Zhou meant.

She thought for a while and said, "It's really difficult to take this as a research topic. But if you have already decided, why are you hesitating?"

Chen Zhou turned to look at Yang Yiyi, he really hesitated.

Although I made the decision to study the hail conjecture, I also set a deadline for myself.

However, he was still a little apprehensive about such a worldwide problem.

I am most afraid of wasting time and getting nothing.

Chen Zhou said frankly: "I don't know if I can complete this project."

Yang Yiyi clasped Chen Zhou's hand tightly, and said softly, "It's not like you to hesitate like this. The one who dared to make a 725 agreement with all the teachers and students in the school, who dared to plan to complete the Department of Mathematics and Department of Physics in his freshman year." A double-graduated person should be a person who will not hesitate when encountering anything."

"We don't know what the future will be like, but we can take every step today for the future. And the result of this project should be known only after we do it."

"Most importantly, I trust your decision."

This was the first time Chen Zhou heard Yang Yiyi say so much, and what he saw in Yang Yiyi's eyes was complete belief.

Chen Zhou smiled lightly, and rubbed Yang Yiyi's head with the other hand: "You're right, you should only know after doing it. It's not about hesitating after you've made a decision."

"That's right." Yang Yiyi said with a smile, "It's not like what you said just now, Yabo Tower begged Boya, Wuming Lake swore to be famous, why don't we just..."

Before Yang Yiyi finished speaking, Chen Zhou suddenly exerted force on his hand and pulled her into his arms.

He hugged very tightly.

Her hands also changed from being panicked at the beginning to slowly resting on his body.

Chen Zhou said softly in Yang Yiyi's ear: "Thank you, Yiyi, it's good to have you."

Although Yang Yiyi didn't speak, a smile unconsciously appeared on the corner of her mouth.

After a long time, the two separated.

Looking at Yang Yiyi's red face, Chen Zhou couldn't help joking, "Did you change from a red apple?"

"Hmph." Yang Yiyi snorted coquettishly, "You are the red apple."

When Chen Zhou returned to the dormitory, it was almost 11 o'clock, which was much later than usual when he came back from the library.

As soon as they entered the dormitory, the three of Zhao Qiqi looked at Chen Zhou together.

Chen Zhou asked suspiciously, "Why are you looking at me like that?"

The three said in unison: "It's nothing, I thought you wouldn't be coming back tonight."

Chen Zhou was slightly embarrassed: "If I don't come back, where will I sleep?"

Zhao Qiqi said: "Then I don't know."

After a pause, Zhao Qiqi noticed something keenly, and then said softly: "You smell of her perfume, it's my nose that committed a crime..."

Chen Zhou: "..."

Zhu Mingli and Li Li snickered aside.

Ignoring the three of them, Chen Zhou picked up the washbasin and went to wash up.

"Fuck..."

While washing up, Chen Zhou realized why these three people were looking at him like that.

When he hugged Yang Yiyi, one of Yang Yiyi's hair fell on his clothes.

Still a prominent position...

At night, Chen Zhou, who was lying on the bed, remembered Yang Yiyi's words, with a smile on his lips unconsciously.

Chen Zhou's heart also became more eager to solve the problem of hail conjecture.

After sending Yang Yiyi a [good night], Chen Zhou fell asleep.

In the next few days, Chen Zhou studied the textbooks of the physics department according to the plan.

On the one hand, a lot of time is spent on consulting topics related to the hail conjecture.

There was one discovery that surprised him, and that was the algebra discussion class about Zhang Zhongyuan.

Some of the content discussed in class was recorded in the wrong problem set.

This also verifies that lesson from the side, the content discussed is flawed.

And those unrecorded ones also provided some references for Chen Zhou.

"Formulating the problem is what must be done to solve the conjecture. Regarding the Hail conjecture, or 3X+1 conjecture, his formula is an iterative formula, with input, output, and feedback..."

Chen Zhou formulated the hail conjecture first, and then studied it.

【Xn+1=(3Xn+1)/2^m, where each X is an odd number, m=1, 2, 3...】

[Until the even number 3^m in 1X+2 is precipitated and offset, so that the right side of the equation is an odd number.If the odd number is not 1, but other odd numbers, continue to iterate until 1. 】

[In other words, what needs to be proved is (3Xn+1)/2^m=1]

(End of this chapter)