Chapter 211 Simplifying the Calculation Process
Classroom 210.
Xu Qingzhou followed the instructions of the girl with a round head and moved the extra table aside, then cleaned it with a broom.
"Why are you cleaning now?"
"This place was originally used to store miscellaneous items." The girl pointed to the tables piled next to her and said helplessly, "However, it seems that there are many more people here than expected this time."
Xu Qingzhou nodded, and then let Chujun sigh and said: "These people are really amateurs in organizing their work. The posters and guidance signs are not clear. The equipment was temporarily inspected and full of loopholes. It is too worrying."
"What do you think?" Xu Qingzhou smiled.
"Of course, all processes must be reviewed in advance, and work responsibilities must be assigned to each person. The most important thing is to take into account all possible variables."
When the conversation started, the girl talked a lot.
Hearing what the girl said so eloquently, Xu Qingzhou couldn't help but point out: "So, why are you working here alone?"
"Those who are capable work hard. I am the person who will be the chairman in the future, so of course I have to do it myself."
Xu Qingzhou looked at her without speaking.
"."
"Well, actually, everyone in our department has been arranged by the teacher to leave."
From the work ID card, it can be seen that this girl is named Ren Chujun, and she is the deputy director of the Propaganda Department of the Student Union. However, he has always wanted to usurp the throne and become the chairman.
The two spent 20 minutes cleaning the classroom from inside to outside, then sat on chairs to rest.
Ren Chujun handed Xu Qingzhou a bottle of mineral water and asked, "Junior, I think you look familiar. Which department are you from?"
Xu Qingzhou unscrewed the bottle cap and said, "I'm not from the student union."
"Oh? From the Mathematics Club?" Ren Chujun took a sip of water.
Xu Qingzhou shook his head and drank water to moisten his throat, "To be precise, I am not from your school."
"Oh, so it's huh? Ahem~"
Ren Chujun was choked and coughed for a long time, staring at Xu Qingzhou with wide eyes, stunned: "You are not from our school?"
Boom~boom~
A thin high school senior walked in with two students, looked at the classroom, and was a little surprised: "Xiao Ren, you have all finished cleaning, you are fast enough."
The middle-aged voice stopped suddenly and looked at Xu Qingzhou: "Xu Qingzhou?"
This person is the teacher who just took Denzel to pick up his friend.
"Yes." Xu Qingzhou nodded with a smile and stood up, "Denzel and the others are here?"
"We're here." The middle-aged man replied without turning his head.
Xu Qingzhou turned to look at Ren Chujun and raised a glass of mineral water: "Then I'll go and get started. This bottle of water will be my reward."
After that, he took the file bag next to him and left.
A boy expressed admiration: "Senior sister, you actually invited a master to clean the house!"
"Senior, from today on, you are my idol!"
Another boy also said.
"."
Ren Chujun was about to cry but had no tears. At this moment, she felt as if her dream of being the chairman was shattered.
At this end, Xu Qingzhou came to 209 next door. In addition to Denzel, there were three more foreigners.
"Xu, let me introduce, this is my colleague Stavin Jair, and this beautiful lady is Grace Ahiti, from Princeton."
"Hello." Xu Qingzhou said. All three of them looked about 30.
"Actually, I know that there are many people who want to listen to your wonderful report." Denzel shrugged and said, "Unfortunately, it is too difficult to apply for a visa for your Xia country."
Grace said: "Yes, compared with these people, we are lucky." Xu Qingzhou smiled and invited everyone to sit down. At this time, Ren Chujun next door walked in with a grimace.
Inviting guests to work, even though the teacher said they didn't criticize them, they will probably be laughed at for a long time.
"Why are you here?" Xu Qingzhou asked.
Ren Chujun cheered himself up and said, "The teacher sent me here as a staff member to help you with odd jobs and the like."
"Then please help me wipe this blackboard." Seeing that Ren Chujun was a little reserved, Xu Qingzhou thought about asking her to do something to avoid being uncomfortable.
"good."
Ren Chujun had no time to worry and started to work.
"Xu, can you elaborate on the formula between pages 45 and 46 of your paper?"
Stavin had already opened the paper on the proof of twin prime numbers and couldn't wait to ask.
Xu Qingzhou glanced at the paper, thought for a few seconds, and stood up: "It is very inefficient to directly calculate the value of the prime number counting function, so I used the prime number theorem."
"According to the numerical study done by Rosser and Schoenfeld in 1962, it can be seen that x≥114514."
As he spoke, he wrote a row of formulas on the blackboard.
Two minutes later, Stavin was thoughtful, his eyes finally lit up, and he commented: "Well, this step was done perfectly."
Ren Chujun moved a stool and watched from the side. He originally wanted to listen more and gain more knowledge.
But Xu Qingzhou spoke in English, and those professional terms soon confused her, and she simply became an emotionless tool.
Xu Qingzhou signaled, and she wiped the blackboard clean with an eraser.
"Actually, my question is about Kramer's theorem." Grace said.
"Well, please speak."
"The adjacent iteration expression for the function of prime difference spacing here is how you pn+1-pn=(pn/n)^2=(nlnpn/n)."
"Here, we need to prove that pn+1-pn=2k"
Xu Qingzhou explained to the other party bit by bit.
Thirty minutes passed by and there were 8 more people in the classroom. Sitting on the left was an old gentleman with white hair.
The old gentleman tapped the tip of his pen a few times, "Classmate Xu Qingzhou, in the 48th formula, mP\sim2C_2\frac{x}{(\lnx)^2, can it be scaled to mP(z)(m , P′.”
Xu Qingzhou immediately cheered up and listened carefully to the other party's explanation.
This old gentleman is Wang Yiyuan, an academician of the Academy of Sciences. He first applied the sieve method in analytic number theory to the study of Goldbach's conjecture in Xia State, proving 2+3. This is the first time that a Xia State scholar has leapt to the world in this field of research. Leading position.
In Xia Kingdom, and even in the world, it can be regarded as Taishan Beidou.
Xu Qingzhou also wrote down the formula and checked it again. He found that the whole calculation process was indeed much simpler and thanked him: "Mr. Wang, thank you for your ideas."
The old gentleman shook his head, then continued to lower his head and make calculations.
Xu Qingzhou simply passed this place at the beginning. If he could figure out the result he wanted, he didn't care about it.
He completely proved the twin prime conjecture, but whether it is mathematics or physics, there will be rapid changes every year.
Just like when Zhang Yitang proved that the interval between prime numbers was less than 70 million, he established a framework. Mathematicians continued to improve his method based on this framework, and successfully reduced 70 million to 246.
Although Andrew Wiles's proof of Fermat's Last Theorem is hailed as a masterpiece in the history of mathematics, his original proof process was complex and lengthy, involving profound mathematical theories such as elliptic curves, modular forms, and Galois representation theory. etc.
Later, mathematicians reduced the verbosity, rearranged the lemmas and theorems in the proof, and replaced the original elliptic curves with higher-dimensional algebraic varieties or more complex elliptic curve families.
In addition to these, those more classic theories in mathematics are also being improved. For example, the original Riemann function R(x) is a special function defined on the interval [0, 1].
Someone has proved that the Riemann function is continuous at all irrational number points within (0, 1) and discontinuous at all rational number points, but there is a limit at every point and the limit is 0.
There is also calculus. Over a long period of time, mathematicians have introduced limit theory to strictly define differentials and integrals, solving the problem of loose logic that existed in the early days of calculus.
(End of chapter)