Xueba starts with change

Chapter 205 Wait for me to look through the collection of wrong questions
During meal time, Chen Zhou took the opportunity to go out of the library to get some air.

Since returning to Yanda, he has been fighting in the library for nearly 8 hours.

Except for lunch at noon, I stopped writing.

The rest of the time, it can be said to be non-stop.

But fortunately, the thinking during military training gave him a guarantee of calculation efficiency.

As long as his train of thought stays on, he can keep advancing towards the hinterland of Hail's conjecture.

It can be said that wherever the idea goes, there will be Chen Zhou's proof.

Now he is indeed a little tired and needs a short rest.

Also adjust and adjust by the way, and then rationalize the thinking.

The two ordered beef noodles and a ham sausage each in the cafeteria.

After coming to the seat with her face in her face, Yang Yiyi asked curiously, "How is it?"

Chen Zhou bit his face off, raised his head and glanced at Yang Yiyi: "It's okay, the current progress is pretty smooth, according to this idea, there will be results in these two days."

"Wow, really?" Yang Yiyi asked in surprise and joy.

This was the first time she heard an affirmative answer from Chen Zhou after Chen Zhou started the research on the hail conjecture.

Before, Chen Zhou either said that his thinking might not be right, or that this thing can't be counted at all...

Then, she just watched Chen Zhou fall into the research of the hailstorm conjecture, but she still couldn't find a solution.

But now, Chen Zhou seems to be very close to his goal.

How can this not surprise her?
Chen Zhou nodded slightly, then laughed softly: "I never thought that a military training would give me an idea to solve the hail conjecture."

Yang Yiyi asked with a puzzled face: "The ideas provided by the military training?"

Chen Zhou said: "During military training, isn't our 7th company contacting the change of formation in the middle of the playground?"

Yang Yiyi nodded: "Well, then you were still standing at the front, I saw you right away."

Chen Zhou smiled: "It's that triangle formation, what do you think that formation looks like?"

"What does it look like?" Yang Yiyi thought for a while, isn't it just a triangle formation?There are too many things that look like triangles.

For example, she likes her favorite ice cream cone, which can also be said to be a triangle.

Thinking of this, Yang Yiyi blurted out: "Like a cone..."

Hearing this answer, Chen Zhou was taken aback for a moment, then laughed loudly, this girl is really a foodie.

Looking at the laughing Chen Zhou, Yang Yiyi wrinkled her delicate nose: "Isn't it?"

Chen Zhou stopped laughing: "Yes, yes, it is indeed like a cone."

Hearing this, Yang Yiyi stuck out her tongue: "In a moment, can I have one?"

Chen Zhou thought for a while and said, "Okay, I'll buy a cone for you foodie."

The agreement between Chen Zhou and Yang Yiyi is that although the ice cream is delicious, you can only eat one ice cream a day, and you can't be greedy.

But today is the day to end military training and return to school, so an exception can be made.

After the ice cream was full, Chen Zhou and Yang Yiyi returned to the library again.

It is rare that the old positions of the two of them are still there.

There is no need to go back and forth to the study room to find a place.

After sitting down, Chen Zhou took out the draft paper from the afternoon, and quickly immersed himself in it.

After analyzing the table obtained before leaving in the afternoon, Chen Zhou obtained the proportion of odd numbers meeting the condition a>a(m) in level n to the total as the number of hail conjecture operations increased.

This ratio is increasing.

But will it be equal to 1 in the end?
With this doubt, Chen Zhou thought for a while, and wrote:
[If the symbol Sm is used to represent the sum of odd proportions of the first m items, then when m→∞, limm→∞Sm=1]

After finishing writing, Chen Zhou marked it again.

Because this symbol ∞ does not mean that m really tends to infinity, but means that this number will tend to a positive integer to be determined.

The proof of this inference depends on the table.

Chen Zhou looked at the form while holding a pen, and kept writing relevant conclusions.

In the table, the ratio of each row can be recorded as a series.

And Chen Zhou is looking for the general term of this sequence.

[...r is the row index, n is the element index of the sequence, and its general term formula is ar, n=(kr, n-1+kr-1, n+1)/2^(2r+n-2).The kk and c here represent the molecules in ak and c...]

The pen in his hand also wanders on the draft paper along with his thoughts.

It's just that it's not like the previous pen and dragon snake.

Where the thought goes, the pen goes.

With more in-depth research on the conjecture of hail, Chen Zhou's thinking gradually couldn't keep up with the speed of his pen.

His thinking time also became longer and longer.

After staying in the library until closing time, Chen Zhou gave up the idea of ​​making persistent efforts.

Some content needs to be clarified.

To do this, you also need to verify it.

After returning to the dormitory, Chen Zhou put the backpack on the chair, didn't move it, but took the washbasin towel and went to take a shower.

After taking a shower, Chen Zhou fumbled and took something out of his backpack, then turned on the bed.

Zhao Qiqi and Li Li are still reading.

The three of them have been lying on their beds for a long time since they returned to school.

Compared with the hard beds in the military training base, they still prefer the comfortable beds made by themselves.

So, the three of them are in high spirits now.

However, they also consciously did not disturb Chen Zhou.

It can be seen from Chen Zhou's performance that apart from saying hello, he ran to the library as soon as he got off the car.

Then, they all came back from the library, still in a daze, and didn't even say a word to them.

Obviously something very important.

Chen Zhou, who didn't know what the three of them were thinking, was lying on the bed at this moment, frowning and thinking about the Hail conjecture.

He is straightening out the follow-up thoughts.

Along the way, including back to now, his mind is full of conjectures and research ideas.

This was also the reason why he didn't talk to Li Li and the others after he came back.

After a while, I saw Chen Zhou's originally frowning brows slowly relaxed, as if he had straightened out the mystery.

He glanced at the item he took out from his backpack, thought for a while, and opened it slowly.

Originally, Chen Zhou planned to either go on with this idea and go to the end, or this idea would not work out and go to death.

Only then will he open the set of wrong questions to verify whether the idea that went to the end is really correct, or where the idea that doesn't work is really wrong.

But now, after Chen Zhou straightened out his thinking, he has seen the final result of this thinking.

At least from his point of view, there should be no problem.

So, it is necessary to check the work results of the nearly 12 hours of this day first.

If you made a mistake before, then there is no need to continue to straighten out your thinking later.

But if there is no problem with the previous ideas, calculations, proofs, discussions, etc., etc.

The solution to the hailstone conjecture is at hand.

Chen Zhou's hands trembled slightly.

Well, this set of wrong questions has recently gained weight and is a bit heavy.

Therefore, the hands will shake.

Finally, Chen Zhou turned to the latest page of the collection of wrong questions.

Chen Zhou could clearly hear his own heartbeat, the sound was loud and the heartbeat was fast.

He was nervous and excited.

It is different from the previous multiple verifications.

The previous him was all trial and error.

Because there are wrong question sets, the cost of trial and error is very low.

Moreover, he himself is not sure.

But this time is different.

He is sure.

Taking a deep breath, Chen Zhou slowly focused his gaze on the latest page of the collection of wrong questions.

Seeing the above content, Chen Zhou was slightly taken aback.

This……

Chen Zhou only felt that his heartbeat slowed down by half a beat.

But when he saw the content clearly, the whole person fell into ecstasy.

(End of this chapter)