Future library

Liu Bin is a provincial-level official, and he holds an important position in the most important province of the Xia Dynasty. According to common understanding, even on his way to his appointment, he would not have much time, let alone talk to a young man about the upcoming affairs. implemented policies.

Perhaps it was Cheng Jinzhou's outstanding performance that gave Liu Bin the urge to seek medical treatment in a hurry.

Cheng Jinzhou didn't know much about politics. Taking advantage of his young age, he moved his body slightly and said: "There is no problem if I want to measure the land by myself. However, the calculus I mentioned yesterday can be used to measure the land." It’s very slow to get up.”

In fact, it is not just a matter of slowness. Calculus is not the apple that Newton bought with a piece of blood. In addition to the application of various formulas, real calculations also require a lot of accumulated data - for future generations, Just look up the meter, Cheng Jinzhou didn't have such a thing.

If you want to complete all the calculation results of calculus over the years by yourself, it is basically an impossible task without the help of large computers and other information. In other words, science in the 21st century has developed to the point where lone heroes have no place to play.

Liu Bin was obviously disappointed and nodded lightly: "Mr. Liu Kuang suggested setting coordinates for the entire province's land from the air, but this would require hundreds of star warlocks and would take up to two to three years. Although it was already very fast... …”

"But it's too expensive?" Cheng Jinzhou shrugged lightly. The one-hour rental fee for a 6-seater helicopter rarely exceeds 1,000 U.S. dollars, which is only 30 taels when converted into silver. A star warlock who can fly in the sky, how can anyone be willing to take such a small amount of money? Even so, In modern land surveying, no one uses hundreds of helicopters - this is the gap in production efficiency.

"Yes." Liu Bin sighed, then smiled and said: "Forget it, let's just chat casually. Yang Ming, you go and prepare your luggage."

"I have a way to make you spend less money, but it's impossible not to spend money." Cheng Jinzhou thought quickly, hesitated for a moment, and finally said it. This transfer envoy is the real financial owner. He has a distinguished status, does not understand mathematics, and is closely related to himself. It is a high-quality and natural place to produce the first barrel of gold.

Yang Ming said "Oh" and sat back regardless of his identity. Both he and Liu Bin looked attentive.

From guard envoy to Hexi transit envoy, Liu Bin was promoted at a higher level in terms of authority. Coupled with his young age, he naturally had great ambitions. Measuring land, developing tax sources, and even reforming the aristocratic system are all part of the ambition. However, at the beginning, the plan ran into a bottleneck, and he was so anxious that he couldn't care about much.

Just like the birth of mathematicians, in the history of Star Warlocks, there are many people who became famous at a young age, and the two of them will not underestimate Cheng Jinzhou.

Looking at their looks, Cheng Jinzhou couldn't help but rub his head and said helplessly: "Do you understand?"

"Go and ask Mr. Wu to come over." Liu Bin reacted quickly and shouted out immediately. One of the purposes of his coming to the Cheng family was to borrow some of the star warlocks he worshiped, and Wu Zong seemed to like him.

Cheng Jinzhou took the opportunity to organize his thoughts. He couldn't count on Jiezi now, but he had to rely on the little knowledge he had accumulated in exchange for money to support it. It was a bit sad to think about it.

Wu Zong trotted into the living room with a pious look on his face. He bowed down in an orderly manner, shrank his shoulders, straightened his arms and bowed deeply, performing the disciple's salute. Astromancers have their own code of life, in which the worship of intelligence and knowledge is the top priority.

Cheng Jinzhou was ignorant and didn't realize it, but he looked at Liu Bin and Yang Ming in shock.

After Wu Zong finished his salute, he sat quietly on Cheng Jinzhou's lower body with his hands on his legs, like a primary school student.

Cheng Jinzhou didn't pay attention to him. When he saw the people arriving, he blinked and said, "Given the current environment, if we want to quickly measure a province's land, Warlock Liu Kuangxing's method should be the fastest."

Liu Bin nodded in agreement. Without the use of star warlocks, it would be possible to measure large areas of land for ten years.

"Let me tell you two ways to reduce costs." Cheng Jinzhou said, subconsciously making a gesture of holding a pen. Wu Zong, like a preying sparrow, immediately handed him a hard-bristle pen, and then took it out of his arms. He took out the paper and carefully laid it out on the table with a look of anticipation on his face.

For star warlocks who have no rank, mathematics that represents the cutting edge of the times is what they look forward to most.

Cheng Jinzhou rubbed his nose and wrote: "The most difficult land to measure is mainly hilly slopes and terraces. In this regard, I have an algorithm that can accurately measure the area and speed up the measurement. Suppose there is a terrace. During the measurement, two people hold tape measures in hand, starting from point A of the terrace, and proceeding along both sides of the terrace to point B. Each time they walk a certain distance, the length of the string is measured. The strings are required to be parallel and at the same distance..."

Along with a string of numbers and proper nouns, beads of sweat soon appeared on the tip of Wu Zong's nose, while his cheeks and forehead were filled with red excitement.

Even in the 21st century, land surveying will not use a lot of high technology, especially in China. It is best to be simple and easy to do and be able to measure in townships.

The problem was different in the Great Xia Dynasty. This was not a society dominated by the small-scale peasant economy. The fields of large landowners were crisscrossed by roads, and the manors of the great nobles were intertwined. It only took more energy to sort out their land.

As a staff member, Yang Ming also knew a little about mathematics. He just looked at Cheng Jinzhou's diagram and nodded: "Your Excellency Liu Kuang said that during coordinate measurement, there will be errors in such uneven land. In this way, A lot of problems will need to be solved.”

"Let's talk about the next one." Cheng Jinzhou didn't pause, and said smoothly: "I actually have some experience in coordinate measurement... Can you three keep it secret?"

"We can submit the results to the association!" Wu Zong called out first and said with confidence: "Coordinate calculation is truly top-notch mathematics. As long as you can make a little progress, the association may give you extremely high rewards. Yes, maybe I will be awarded a rank because of it. When the time comes to change to some advanced star formations, who dares to have any ideas?"

"I have my own ideas." Cheng Jinzhou knew it very well and continued: "Can I keep it a secret?"

Seeing Wu Zong's attitude towards Cheng Jinzhou, Liu Bin looked at him at a straight level, nodded heavily and said, "Liu swears."

"Yang guarantees it with the lives of his whole family."

Wu Zong had no choice but to resist going to Jinzhou, so he finally raised his head and said: "In the name of the Star God!"

He then said unwillingly: "Associations use a contribution system. In exchange for star arrays and understanding other people's research results, exchanges are always required."

"That will happen later." Cheng Jinzhou had to be careful. Analytical geometry and calculus are the two beginnings of modern mathematics, and modern mathematics is the beginning of modern science. Geniuses cannot solve these two problems independently. He didn't want to expose the tail of calculus and throw out analytic geometry at the same time.

"Without affecting the accuracy, I only need fewer points to measure more areas." Cheng Jinzhou said while drawing simple irregular shapes on paper: "There are several formulas that can be applied here. ..., of course, you should give it to Warlock Liu Kuangxing to verify, but don’t tell him that I wrote it.”

Yang Ming couldn't understand the formula, but he shook his chin frequently and said, "If there are fewer points to measure, there will be fewer star warlocks to use."

"That's right." Cheng Jinzhou laughed. The coordinate method for measuring area is actually more used in road construction, because roads, etc., must be flat without folds, and there will be no ravines that are common in fields. However, in the Great Xia Dynasty, large tracts of land were the mainstream. This was an agricultural country somewhat like South America.

Compared with the level of analytic geometry in the 17th century, Cheng Jinzhou could come up with far too many things. Even if he is a Ph.D. in physics who doesn't study hard.

…

If you like this book, please vote for it and add it to your collection.

…