Chapter 175

The air seemed to solidify. Ran Na stared at the young boy in front of her with her beautiful eyes, truly a bit bewildered.

Not playing by the rules?

She really wanted to ask, how could he have the heart to refuse a request from such a beautiful and glamorous big sister?!

"Sorry, I also like sitting by the window."

Xu Qingzhou shrugged, directly ignoring the resentment in the other's eyes, and lowered his head to study the materials at hand. At the same time, he sneered inwardly: a honey trap? Heh, compared to Song Yao, it was too weak.

Next door, Sun Qingli almost laughed out loud. He had been genuinely worried that this boy would agree just now; he hadn't expected the other party to be such a "steel-straight" man.

At this moment, he found Xu Qingzhou much more pleasing to the eye.

The plane continued to climb, and the buildings on the ground gradually shrank. By the time Xu Qingzhou opened his eyes again, the plane had already reached the stratosphere.

Read! {

Ran Na was editing photos and answered nonchalantly: "I'm fine with anything."

He had been pursuing Xiao Ran for so long and had never seen her be this proactive! "Math... I'm not very good at it either."

"Mm, yes." Xu Qingzhou answered without lifting his head, staring at the prime number distribution calculation module, wondering whether to change his approach—to derive the Shapiro Tauberian theorem here first, and then use this theorem to obtain the prime number distribution law through elementary methods.

After all, novels are also a form of art, and art comes from reality.

Then, Ran Na's expression froze. She just wanted to say: That's it? She was considered a beauty, after all; wherever she went, she was surrounded by admirers, with a pile of pursuers.

"Not busy, not busy. My supervisor gave me time off during this period."

The plane began to taxi on the runway, rushing toward the sky amidst the roar of the engines.

"Click, click~"

10 minutes passed.

At the very least, he had new ideas and methods.

Ran Na was at odds with the dog of a man in front of her. What could possibly be more interesting than a great beauty like her?

What he couldn't figure out was how the junior, who was usually so arrogant, could strike up a conversation with someone who had just rejected her.

Sun Qingli gritted his teeth secretly, his gaze sweeping over Xu Qingzhou. The clothes this boy was wearing didn't add up to more than 2,000 yuan.

In novels, if you want to break through, you have to go out and gain experience, looking for opportunities. Could it be that he was in a similar situation?

Must say, this little brother was quite attractive.

No money, not proactive—a bookworm was definitely not the type Xiao Ran liked.

Xu Qingzhou squinted, feeling a bit of a headache. He rubbed his temples and took out the very first manuscript, deciding to start from the beginning and go through all the previous content; perhaps he could find some clues in the details.

Even Xu Qingzhou diverted a little attention; as for Sun Qingli, he was already hooked like a carp.

During this period, there had always been a feeling of a flash of inspiration, but once he concentrated and tried to grasp it, this feeling would disappear.

Heh, a dud. Xu Qingzhou withdrew his gaze, feeling there was nothing worth looking at.

Mm, more stable.

!.

At this moment, the plane had leveled off. The sky was deep blue, and sunlight spilled over the rolling sea of clouds, which was very spectacular. Seeing the girl he liked talking to another boy, Sun Qingli felt very sour. He glanced at the manuscript in Xu Qingzhou's hand, couldn't understand it, and could only secretly curse the guy for showing off.

Just now, Ran Na had deliberately made some noise, such as accidentally bumping into the other person while reaching for something, and then apologizing. However, she was disappointed; such a great beauty was sitting next to him, yet he had absolutely no intention of striking up a conversation with her.

Seen from the side, the young boy had sharp facial features. When serious, his expression was solemn, radiating a special charm completely different from the bookworms she usually saw.

"Senior, if you're busy, you can go back to school first. I can just wander around by myself."

Ran Na looked at Xu Qingzhou with resentment, but finding that he turned a blind eye and his attention wasn't on her at all, she could only turn back and hand her phone to Sun Qingli: "Senior, help me take two photos."

No clue at all.

Ran Na decided to take the initiative and asked with a smile: "Handsome, are you reading math?"

Sun Qingli was on the side trying to make his presence felt, asking very considerately: "Xiao Ran, do you want to drink some water?"

Sun Qingli had originally wanted to suggest taking a group photo, but the phone had already been taken by Ran Na, who was clamoring to see the photos first. After looking at them, she praised his technique, saying he could be a photographer.

Continuing from the previous step, if one uses the properties of Dirichlet series and Dirichlet convolution, it is known that when the Dirichlet series of a number-theoretic function converges absolutely, we have: l(s)=\sum_{n=1}^{\infty}\frac{a_n}{n^s}. If \pi_2(x) is used to represent the number of twin primes not exceeding x, the current dilemma lies in how to find an asymptotic formula to compensate for the defects of the sieve method and proceed smoothly to the next step of the conjecture proof.

On the side, Xu Qingzhou had already put down the manuscript, first closing his eyes to rest, intending to wait until the plane was a bit steadier before reading.

Ran Na had no desire to continue chatting with Sun Qingli and simply took her phone to take pictures of the beautiful sea of clouds outside the window. Seeing she wanted to take photos, Xu Qingzhou cooperated by leaning back; seeing she was done, he sat up straight again and lowered his head to ponder.

But... why did Xiao Ran want to talk to the other guy?

Sun Qingli excitedly talked about the plans for the next few days.

Xu Qingzhou ignored the two people whispering beside him and continued reading the materials.

Then, the broadcast asked everyone to fasten their seatbelts. When the plane took off, he hadn't even had the chance to mention taking a photo together.

So this Jianqiao trip was the "training"?

"Xiao Ran, let's play in London for two days first, then stay in Jianqiao for a day. On April 2nd, we'll go to Glasgow..."

"No, thank you." Ran Na shook her head politely, squeezed a smile onto her face, and continued to talk to Xu Qingzhou: "I admire you people who are good at math the most. Unlike me, I've never been very good at math since I was a child."

"Tomorrow, let's go to Buckingham Palace first..."

Ran Na smiled and thanked him. After taking the photos and editing them for a few minutes, she felt bored again and turned her gaze to the boy beside her who had just rejected her.

Ran Na was good at posing. Even in the narrow cabin seat, she could fully display her figure. Even though Xu Qingzhou was prepared to read the materials seriously, his peripheral vision was still drawn to the protrusion under her sweater.

"Okay." Sun Qingli happily took Ran Na's phone.

The manuscript in the boy's hand was full of strange symbols he couldn't understand.

Thinking of this, Xu Qingzhou felt amused. As someone who did physics, he was actually starting to use things from novels to explain reality—purely because he was bored out of his mind.

He laughed at himself, let out a breath, and focused his attention back on the manuscript. As mentioned earlier, the entire advancement process could be considered smooth—of course, this was only relatively smooth compared to the difficult development process of the entire Twin Prime Conjecture.

Xu Qingzhou still just nodded, his brain busy with the calculation of the new method, without the slightest desire to chat.

Thus, the surroundings fell into silence again.

Ran Na was speechless, thinking to herself: Little brother, you're going to kill the conversation like this.

However, she inexplicably felt that such a boy seemed quite interesting.

(End of chapter)