In the polar night world, the wind is howling and the weather is getting colder and colder.

Not two days after the sky cleared up, the clouds once again blocked the scorching sun and snowflakes fell from the sky.

"This damn weather will never end."

Inside the tent, Li Ziye lay in front of the window, looking at the heavy snow outside, and said.

"The headquarters of the eight tribes in Mobei have moved back a lot in the past few days, and the polar night world is moving southward faster and faster."

On the side, Bai Wangyu said.

"Natural disasters and demonic disasters are troublesome."

Li Ziye murmured softly.

"At this time, it should be summer in the Central Plains, right?"

Outside the tent, Wen Xiuru came in with two bowls of soup and medicine and said casually.

"almost."

Li Ziye nodded and said, "In total, we have been in Mobei for half a year, and we don't know when we can go back."

"Soon."

Wen Xiuru handed the decoction to the two of them and said, "As long as this counterattack can achieve a complete victory, the demon clan's vitality will be severely damaged, and it will be difficult to start another war in a short time."

Li Ziye took his medicine and drank it in one gulp. He picked up a few pieces of dried fruit from the fruit plate in front of him and stuffed it into his mouth. He chewed it and said, "We can't break the situation of the polar night moving south, even if we defeat it this time."

Monster Clan, from now on, it is only a matter of time before the Monster Clan counterattacks."

In front of the window, Bai Wangyu also finished drinking the medicine, took a piece of dried fruit from the fruit plate in the hands of the young man in front of him, stuffed it into his mouth, and said, "Brother Li, do you still not believe the words of the God of Light?"

"Don't believe it."

Li Ziye shook his head decisively and said, "Although he saved me, I always feel that he cannot be saved, otherwise there will be a big disaster."

"When Chen Jiaoxi fought against the demon goddess before, the demon goddess also said not to believe the words of the God of Light."

Wen Xiuru put away the two medicine bowls and said, "I really don't know whose words of these two are more trustworthy."

"They are not trustworthy, they are all bad people."

Li Ziye said very simply.

"The enemy of my enemy is not my friend. What's wrong with this world."

Wen Xiuru sighed softly and said, "Judging from the current speed of the spread of the polar night world, I am afraid that in a few years, half of Mobei will be swallowed up by the night. By then, the people of Mobei will suffer."

"It depends on what happens this winter."

Li Ziye said, "It's summer now, and the spread of the polar night world is still a little slow. When winter comes, if the spread of the polar night world accelerates further, it will be really troublesome."

"Brother Li, you are so smart, there is nothing you can do about it?" Wen Xiuru said.

"No."

Li Ziye looked at the heavy snow falling outside and said, "Manpower is vulnerable to nature. We are all people with a foundation in martial arts. We are not accustomed to the severe cold here, let alone ordinary people. I only hope that this extreme

The phenomenon of the night moving south is only temporary, otherwise, once the polar night spreads to Kyushu, the world will be over."

At this point, Li Ziye noticed that Little Red Riding Hood kept eating his dried fruits, and immediately stuffed all the dried fruits left on the plate into his mouth, slurring, "No more, go get it yourself if you want."

"..."

Bai Wangyu retracted the hand he just extended, speechless in his heart. He had never seen such a stingy person.

Sure enough, the richer the person, the more stingy they are.

"The Li boy."

At this time, in the heavy snow, Faru hurriedly walked over, opened the tent and entered the tent. He said anxiously, "We have collected the soil samples you want. Quickly determine the specific location of the oil reservoir."

"Hey, I'm alive again. I'm really working hard."

Hearing this, Li Ziye curled his lips and said, "Father Faru, I'm still injured. Aren't you afraid that I'll die suddenly from overworking?"

"Stop talking and hurry up."

Fa Ru was not in a good mood.

"All right."

Li Ziye took the soil sample and location map handed over by Faru, spread out the map, and prepared to estimate the specific location of the oil reservoir.

"Brother Li, can you calculate the location of the oil reservoir with just this soil and a map?"

On the side, Wen Xiuru said curiously.

"It won't be particularly accurate, but it won't be too different. After all, oil reservoirs are generally a large area, not a small lump."

While talking, Li Ziye opened a bag of soil, smelled it, and immediately raised his head, almost crying.

This smell is so disgusting.

"How do you calculate it? Can you teach me?"

Seeing this, Wen Xiuru came forward and said.

"Stay away, your face is too big and it will make you dizzy."

Li Ziye pushed the big face of the person in front of him away and said contemptuously, "Even if I tell you, will you understand?"

"Understood."

Wen Xiuru nodded vigorously and said, "When I was in Taixue Palace, apart from my senior brother, I was always one of the best in my homework."

"Okay, listen."

Li Ziye put down the sample soil, pointed at the orientation map in front of him, and said, "I asked them to collect as much soil sample as possible, and remember the orientation and distance of the sample soil, and draw this map. In this way, I can draw it based on

The difference in oil content of sample soil is used to calculate a function to see whether the oil content of sample soil and distance is a linear function or a quadratic function. Of course, it may also be a complex function."

"Then, based on this function, more values ​​are brought in to verify the deviation. If the deviation is not large, it means that the calculated function can be used. Then, the calculated function is used to back-calculate the peak value. Once the peak value is found, restart

Bring in the function, further calculate the distance, and then draw and find the intersection. If you continue to disprove it several times, you can basically determine the specific location of the oil reservoir."

At this point, Li Ziye looked at Wen Xiuru beside him and said, "How is it? Do you understand?"

Inside the tent, everything was quiet.

You can hear the needle drop.

Wen Xiuru was already stupid.

On the side, Little Red Riding Hood was not much better, with a face full of shock.

What is this all about?

Only Fa Ru, although he didn't understand a word, pretended to be calm and calm as if I almost understood him.

"Li...Brother Li."

After a long time, Wen Xiuru came back to his senses, swallowed his saliva, and said, "What is a function and what is a deviation?"

"This involves a more complicated definition. Are you sure you want to listen?"

Li Ziye said with a smile on his face.

"No...no!"

Seeing this, Wen Xiuru quickly shook his head.

"With your level, you are still one of the best in homework? This shows how worrying the cultural quality of the students at Taixue Palace is."

Li Ziye sighed with disdain and said, "When I go back, I must reflect with the Confucian students that the universalization of nine-year compulsory education is imminent! Such a simple function algorithm, in my hometown, primary school students who have read a few years of school can close their eyes

It can all be solved."

"Ahem!"

In the tent, Fa Ru suppressed the shame in his heart and pretended to be indifferent, "Boy, how long will it take to figure it out?"

"Two days."

Li Ziye said, "After all, we need to verify it several times. If possible, ask them to send more soil samples. The more values, the smaller the deviation, and the more accurate the calculated position will be."

"good!"

Faru responded quickly, turned around and left in a hurry.

It’s not a good place to stay for a long time!

If it's seen out, it's over.
Chapter completed!