All-round mathematician

Chapter 198

"Yang Hang, let you stand in front. Get out of your way, let me die first."

"Yao Zhewei, don't play if you don't know how to move, professionally cheat teammates."

Chen Xiaoying yelled, and the second brother was directed by her, and his performance was even worse.

Seeing his cousin playing games with a gloomy face, Yang Fan must have reached the limit of his patience. Yao Zhewei was easy to talk, but made repeated mistakes on purpose.

A group of troubled teenagers and men.

Yang Fan is proud, brother is out of the child's level after all, look, the game is not interesting at all.He is familiar with Yang Hang's room, and he often slept together when he was young a few years ago.

He went to the printer and pulled out a few blank sheets of paper, and a pencil from the nightstand drawer.The three of them sat on the mat and glanced at this brother, doing what he likes, the mobile phone operator has no time to talk.

Returning to the living room and opening the mobile phone map, Yang Fan said, "Brother Tian, ​​how are the seats of the seven crime spots distributed?"

"Yang Fan, are you serious?"

"What the hell, do you know how to solve crimes?"

Yang Fan did not speak, referring to the map of Beiqiao, sketched with a pencil on the paper, and with a few strokes, the main road of Beiqiao Town was drawn.

The hands did not stop, adding branch lines, small roads, and allocating commercial districts, residential districts, and first-level industrial districts.From scratch, the image is gradually plump, and it takes less than 3 minutes to complete.

"What a powerful memory?"

Several men put their heads together and watched him finish the map.Tian Jian has been studying this map for more than half a year, and he can't be more familiar with it.

If you ask him to draw it, it will probably be fine, but it is impossible to show it perfectly after a few glances like Yang Fan.

"You have some knowledge, Yang Fan."

Chen Shifei saw the beauty, and how the beauty came from was the precise proportion.From the beginning to the end, the pencil has not been modified in hand, and it is done in one go.

"The regulations are clear, the fields are criss-crossed, it's like a sketch looking down, and the real map is enlarged." Chen Shifei was amazed by this, because his ability to draw with his hands alone can make a living outside.

Embarrassed by the praise, Yang Fan scratched his head and said, "I'm just messing around. Brother Tian, ​​please report the location of the crime. I'll try to figure out where he lives or where he will commit the crime next time."

calculate?Can crimes be counted?
I said random just now, didn't you understand?

Did Tian Jian ever think that if he was a criminal, he would set up and calculate in advance when to commit the crime?
No, the probability of a single woman walking alone at night is very small. After the rumors became more serious, the police force made ambushes many times late at night, and the suspect never showed up.

Seeing that his cousin didn’t seem to be joking, and his family members didn’t object obviously, Tian Jian remembered that he was still called a mathematician. It was the first crime committed on Guangfei Road and Liujiaxiang..."

"At 6:7 am on June 15 last month, at..."

The 7 crime locations are replaced by circles with a radius of one millimeter.Three are in the southeast corner and four are in the northwest corner.

If the 7 points are in a circle, the suspect is most likely to live in the middle.

just now……

As a guessing game, several big men became interested.

"Arranged in two levels, enclosing the location, will it be the middle of the southeast and northwest straight line?"

"It's not that simple. Xiaotian said that the suspect is cunning. This should be a deliberate inducement. He may be in the northeast blank area, or he may live in the southwest."

Seeing his son Yang Fan bowing his head and groaning silently, Yang Tian said, fearing that the latter would not come down, he said, "Don't be brave, we ordinary people, what are you worrying about. With the power of the government, people can be caught in a few days."

"Yes, drink tea and smoke." Tian Jian added tea for them and distributed cigarettes.

"No, there are rules." Yang Fan focused his eyes, and started writing again after thinking about it.

"What? Really?"

Tian Jian followed his fingers subconsciously, and only heard Yang Fan write and say: "According to criminal psychology, when committing a crime, one must be familiar with the surrounding environment and stay away from the house in order to prevent exposure. Then, the distance is set at 5 meters." to a kilometer."

7 point spreads, according to the scale, draw seven hollow circles.Three crosses cover 6 places, four crosses cover 5 places, and when the last circle is drawn, the most critical place appears, where five circles cross.

"How could it be so round?" Chen Shifei gasped. His aesthetics were different. He saw the beauty of the circle, which seemed to be drawn with a compasses. It reminded him of Leonardo da Vinci's drawing eggs.

How did he judge the ratio of five hundred to one kilometer?Measuring the size with the naked eye is magical.

"Here?" Yang Tian pointed to the place with the most intersections.

"Hey, isn't that the middle of the two places I just mentioned?" Yang Yuan was overjoyed, he felt good about himself, and his IQ was on the line, "But still not as clever as my nephew Yang Fan, who made the location more precise."

Yang Yuan flattered himself and his nephew again, his face immediately flushed, and he could help me get a son-in-law, killing three birds with one stone.

Tian Jian glanced at that place, slightly disappointed, he was too young to understand the power of the police system.

"Xiaotian, have you checked this piece?" Yang Tian asked his son.

Yang Fan's brows furrowed deeper and deeper, feeling still wrong, what's wrong?This turned out to be too easy.

"The criminal psychology expert and behavioral expert of the police force came to a conclusion similar to that of Yang Fan. It was a radius of [-] meters, which happened to be the dormitory buildings of two companies. It can be said that we dug the ground three feet, and there was no harvest." Tian Jianmian Expressionless.

The case was the fifth, and the location of the crime was from the southeast to the northwest of Beiqiao Town. The criminal police squadron cheered and thought they had caught the suspect's little tail.

The reality gave them a loud slap in the face, and they checked five times to no avail.In the dormitory building, after the employees went to work during the day, the criminal police cordoned off the scene, called private lockpicking experts, and checked all the boxes.

This is embarrassing, isn't it, mathematicians haven't made a name for themselves.

Yang Tian coughed, looked at the electronic clock on the wall pretendingly, and said, "It's past nine o'clock, why don't we just leave. Go back and take a bath in the hot weather."

He lightly kicked his son's ass, who was lying on his stomach and thinking, and pretended to be aggressive, so run away.

"Dad, what are you doing?" Yang Fan was puzzled.

"My family is sleepy and I'm going home."

"Yes, let's meet again another day."

"That's it." Yang Fan hurriedly added two small black dots on the map, raised his head to face Tian Jian, and said, "Brother Tian, ​​these two places will be the place where the crime will be committed next time, you should ask someone to pre-volt in advance."

After handing over the paper, Yang Fan stood up and ran to grandma's room.

After turning on the light, the old man had already fallen asleep, so he waved his hand without saying anything.

"My aunt is gone."

"Uncle is gone."

……

Tian Jian studied the remaining two targets, and the more he looked, the more confused he became. Isn't this just nonsense? The two added crime spots seem to be less than a hundred meters away from the sixth or so.

A repeat offender?The suspect is no longer mentally handicapped.

The whole family was greeting each other and preparing to leave. Tian Jian sat on the sofa, struggling violently.

"Wait." Holding the last hope, Tian Jian stopped Yang Fan who was at the gate, "Little brother, it's not that I don't believe you, there must be a basis for arranging the police force, if you can't convince the team members, what should I do as the team leader?"

Don't say he didn't believe it, the family members heard it clearly before and after, and they were also dubious.

"If it's really famous, tell your brother Tian."

"That's right, you little bastard, what do you mean by hiding your words halfway?" Yang Xi pinched Yang Fan's ear, whoever kisses her boyfriend and younger brother, it must be her boyfriend at this point in time.

"Row."

Yang Fan took back the paper on which the map was drawn from Tian Jian's hand, folded both sides in half and returned it: "Brother Tian, ​​read it again."

On the white paper, facing the light, the nine small dots are strangely familiar.

"This is... Big Dipper?" Tian Jian was shocked.

(End of this chapter)