Chapter 809: Math problems on Weibo (2/3)

Fuda,
　　 Office of the Audit Team of the Complex Building,
Xu Mang, as the person in charge of the team, is also the director of the office. At this time, he is proofreading the review list. Although the first round of thesis review was only the day after tomorrow, there was no way... he was kicked out by his wife. Lying on the sofa made Yang Xiaoman very annoyed.
　　 After initially checking the list, Xu Mang really found a lot of authoritative persons. Of course, according to the questions provided above, it is not a big problem. It cannot be because there are deviations in some details, or the procedures are not reasonable enough.
However, Xu Mang would not keep his eyes on this issue. What he cares about is those tampering and fabricating improper behavior. Of course, he checks whether there are some academic naming phenomena and removes the names that should not appear, especially certain possessions. People of special status.
　　 Others will be scrupulous, but Xu Mang doesn't matter, it's a big deal.
prior to,
Xu Mang has already understood this for a while, and naming has long become a chain of interests. Some belong to the sale-type naming, and the payment is paid to help the signature. This is a very low-end existence, and some belong to the dipping-type naming. Use the celebrity effect to get his articles published as soon as possible.
　　 There is another kind,
　　 Transferring naming... I know that my articles are not in compliance with the norms or have fraudulent behavior, but I put someone else’s name on them to avoid some risks. Anyway, there are many types.
　　 In fact, it is very easy to find out, but it often affects many people. At this time, a senior person is needed to sit down, but the seniors are unwilling. After all, they have been in this field for so many years, and there is more or less friendship.
　　 However, young people are not qualified and can't live with certain people... In short, reviewing papers is a thankless task, the process is very simple, but the person in charge has to bear a lot of pressure.
　　 is Xu Mang,
　　 Young but old, the most important thing is that he can ignore many things.
"Hey?"
　　 "Um...Okay!" Xu Mang received the call from Grandpa Second, and then went to Grandpa Second's office.
　　 pushed the door and entered,
Xu Mang saw his second grandfather in the office and asked with a smile, "Second grandpa...what's the matter? Tomorrow I will have a simple meeting with the members, and the first round of review will be conducted the day after tomorrow. I will grab a typical one."
"Ok!"
　　 "Say you were seen on the audit list, right?" Grandpa Second asked, "Do you have any thoughts?"
"Oh... I saw a lot of authority figures." Xu Mang shrugged and said calmly: "But they are all small problems and can be ignored, but some people have more serious problems. Of course, I have not read their papers. , I don’t know how serious it is for the time being. The remarks are very serious."
"Ok!"
"In fact, you don't need to check. You are the pillar of the entire review team, just to frighten some people." Grandpa Second said: "I know you are very busy, so if you have to, use your own identity as a last resort. Put pressure on the opponent."
　　 Xu Mang nodded, and said seriously: "I know...are there some second generations in it? Relying on the name to get a high degree of education, and thus have a beautiful experience, so as to pave the way of future life?"
"Roughly the same."
　　 "There are also many well-known professors, and you also need to solve them. Some people will refute you, don't let them have this opportunity." Grandpa Second said: "Strike out, this time we must deal with them severely."
"Oh!"
"Don't worry, Second Grandpa, I'm good at this kind of thing." Xu Mang patted his chest and said with a smile: "By the way, Second Grandpa, Xiao Man has been a bit naughty recently. Can you give her a call? Reprimand, this woman has been bullying me all day."
　　 "I don't want to take care of your young couple's affairs." Grandpa Er glanced at Xu Mang, and said calmly, "When will you get married?"
"I'll get a marriage certificate next month." Xu Mang said seriously: "Marriage... hasn't been decided yet, but it should be two years later. Of course, all of this is planned. In fact, it depends on Xiaoman's stomach. When you get older, if you have one, do it early, otherwise you won’t be able to wear the wedding dress."
The second grandfather nodded, showing a helpless smile, and said: "Time is too fast... the little girl from the past is going to get married. It's almost 20 years... Time flies, and the years go by, over the past 20 years. It feels like it just happened yesterday."
　　 No!
Xu Mang also felt that time was too fast. He vaguely remembered that he was sitting behind Xiaoman, and then said some nonsense to her, and then she became furious, and then a period of evil fate was born, and the two of them seemed to be inserted into a keyhole. The iron wire, the more struggling, the tighter it becomes.
No solution...
　　 This is destiny. Beautiful things are always impermanent. There are opportunities for success and the favor of destiny. How many times can you miss in an ordinary life?
　　 did not miss it,
　　 As a result, a violent airport was harvested.
　　 came home,
Xu Mang was cooking in the kitchen. At this time, he heard the door opening and Yang Xiaoman returned home, but she seemed a little tired at this time. Xu Mang had just finished cutting the vegetables and walked to Xiaoman with his apron, and asked with concern. Said: "What's wrong?"
　　"..."
"The company encountered something that made me very annoyed." Yang Xiaoman frowned and said: "I suspect that someone deliberately harass me... Recently, many organizations are running to my company, either checking this or that , I'm so annoying."
"what?"
　　 "What to check?" Xu Mang asked.
"A lot... in any case, there is a mess." Yang Xiaoman glanced at Xu Mang and asked curiously: "Should I fight back? Investigate who is behind the ghost, and dare to do something to my old lady. Tired, isn't it?"
　　 Xu Mang: (°ー°〃)
I go!
　　Who dare to provoke you in the magic city?
　　 may be a regular inspection, after all, fire prevention and theft prevention measures are required.
"Don't think about it." Xu Mang said helplessly: "It's coming to June, and people have to write a half-year report. If there is no inspection, who will be responsible if something happens? You don't care, but others are different. what."
　　 "Foot!"
　　 Yang Xiaoman pouted and said silently: "What have you been doing lately? You don't go to work, and you don't get up until noon."
　　 "Check the list."
　　 "Look at the names of those who are going to be reviewed." Xu Mang said: "There is a little pressure...There are some second generations, celebrities, rich people and the like."
Yang Xiaoman said disdainfully: "Cut...I am covering you, my mother! What second generation, what star, what rich man, dare to say irresponsible things... teach him how to behave on the spot, Xiao Mangmang don't panic... If you have any questions, you don't need to explain, just kill them!"
　　 Xu Mang was speechless for a while, the woman became more and more violent, but she also kept getting shorter, but this little man was really...can't listen.
　　 "Hey hey!"
　　 "Can you ban this'Little Mangman'?" Xu Mang said angrily: "It's too numb, too stupid!"
　　 "Don't!"
Yang Xiaoman rolled his eyes and said with a grin: "Then I call you...How about Xiao Xu Xu? Anyway, you choose, Xiao Xu Xu or Xiao Mangmang, whichever you think sounds nice, I will call you, anyway. Calling is impossible."
I...
This...
　　 doesn't sound good!
　　After thinking about it, Xu Mang finally decided on the little one behind.
Dinner is a simple three dishes and one soup. Xu Mang doesn’t cook much. It’s just enough for two people. Recently, Xiaoman was losing weight and didn’t know what was wrong. He actually stood on the electronic scale, but he jumped out. The numbers almost didn't collapse.
　　 But Xu Mang thinks that Xiaoman is making a fuss a little bit, so he has gained three pounds...Is it necessary to make such a fuss? Before, I gained ten pounds, although I lost it back.
Ugh...
　　 It’s going to be vegetarian for a while.
　　夜,
　　 comes again,
　　 Xu Mang had just finished taking a shower, got under the bed, stood up and took a tablet computer from his side, and began to explore the latest important events.
"Ugh?"
"How to solve this problem?" Yang Xiaoman took the phone, got close to Xu Mang, and asked curiously: "This is what I got through Weibo. This blogger said that the above problem has troubled mathematicians 100 For many years, can you solve it?"
"what?"
　　 "What's the problem?" Xu Mang asked absently.
　　 "It is a patch issue."
"There is a hole in the trousers, but the shape of this hole is very strange, but the distance between any two points is not more than one centimeter. Is a one-centimeter circular patch really enough?" Yang Xiaoman said: "I count A moment... If the hole is an equilateral triangle with a side length of one centimeter, it is basically not enough."
"Oh..."
"This problem is called the universal coverage problem in mathematics." Xu Mang said indifferently: "There are many ways to say, but the width of the core is one, that is, there is a figure on the plane, between any two points in the figure. The distance is not more than one."
　　 "It is required to find a figure with the smallest area. UU Reading www.uukanshu.com can cover all figures with a width of one." Xu Mang said.
"what?"
"exactly!"
"This blogger mentioned universal coverage, and he said that no one can solve it." Yang Xiaoman said angrily: "My old lady, I was so angry at the time. If you didn't solve it, he dared to declare that no one could solve it. What do you mean? Look down on you!"
　　 Xu Mang said indifferently:
Using the properties of equal-width curves, the simplest method is a regular hexagon with opposite sides at one distance, to achieve universal coverage.

　　 Yang Xiaoman was taken aback. He tried to draw a few graphics. The result was that his husband provided a regular hexagon with a distance of one on the opposite side, which happened to cover all the graphics with a width of one.
　　 "But..."
　　 "Husband...can you shrink it down?" Yang Xiaoman asked with a small mouth, "I calculated this figure, and it seems to be zero.86."
"The blogger said...the smallest universal coverage area at present is 0.8441153..." Yang Xiaoman said: "Can there be something smaller than this? The blogger seems to be a PhD in mathematics. , You see, you see... he replies to others, looking so annoying!"
　　 Xu Mang nodded, and said blankly: "Yes!"
　　 "You reply to him below and give me three days to reduce the area to a smaller value than before!"
　　......