The subordinates in the other courtyard are no less than those in the ancestral house, but the masters do not come often, and they are a little less cautious, although they do not run between the first and second gates, it is common to leave their posts without permission.

Cheng Jinzhou still walked in through the small door, and left Shi Yan outside to wait for the food sent by the Huo family. Sanfang has two small courtyards of his own in the other courtyard, and the servant is also a person from Sanfang, in addition to hurriedly going to the old mansion to report, he will arrange him properly.

The room outside the hall was not very well lit, Cheng Jinzhou stretched his waist tiredly, shaking his head in his heart, this body was so sick and weak that he felt tired even when he was in the car, and he fell asleep in a daze.

When he woke up again, Shi Mo was already standing beside him, first instructed the maid to prepare the washing things, and then whispered: "Third brother, the young lady sent someone over to ask, what are you buying all that food for?" ”

"Who said that?" Cheng Jinzhou had expected that with his age and identity of 12 years old at this time, no matter what he did, people would report it to his parents. However, they should not be allowed to report it casually......

Shi Mo's eyes drifted for a moment, and he said, "Shi Yan and I know the rules, and we don't dare to talk nonsense outside." ”

They are Cheng Jinzhou's scholars, and the second-class monthly example also comes from here, so they will inevitably go to the little master first, but they don't dare to offend other servants lightly.

Cheng Jinzhou snorted and said, "The master who drove the car? ”

Shimo shook his head lightly.

"The shopkeeper of the Huo family?"

Shi Mo still shook his head.

Cheng Jinzhou was a little angry, he was not a good-tempered person, even if he had been polished in school for so long, he was still a standard second ancestor, and at this moment he slapped the edge of the bed and said angrily: "Say!" ”

Shi Mo didn't wait for the sick seedlings in the process, and when he heard the sound of "popping" on the edge of the bed, he knelt down and hurriedly said: "It was the door of the other courtyard that reported to the young grandmother." ”

The same fourteen or fifteen-year-old boy knelt in front of Cheng Jinzhou, this guy only praised the evil old society in his heart, and then said with a big grin: "Which door?" ”

The door is the head of the doormen, which Cheng Jinzhou doesn't understand.

The two scholars couldn't explain, so Shi Yan knelt down and said, "It's the high sixteenth of the gatehouse, and when he saw that we came to the other courtyard, he reported it first." ”

Cheng Jinzhou sighed "En" and said, "Get up, such a thing will be known to me in the future." ”

"Yes." The two of them were not familiar with the original sick seedling Cheng, and they were kneaded twice by Cheng Jinzhou, who had a black belly, and they obeyed.

Cheng Jinzhou didn't continue to talk about this topic, snapped his fingers lightly, and asked again: "Has the grain been delivered?" ”

"It's all delivered, 4o stone of rice, 4o stone of grain, and 1o stone of sorghum. In the end, there was only one or two or three pieces of silver left. Shimo said in a proper manner.

At this time, the maidservant also brought a regular copper basin, a towel woven of long pile thread, a thin and small silk square scarf, and a palm-sized soap, and said, "Third brother, the second housekeeper said that I will make an empty room for you in the storehouse in the backyard, and you can pile up the grain in it." ”

Dr. Cheng smiled and said, "Yes, thank the housekeeper on my behalf, let's send the things over now." Arise also. ”

The latter sentence was said to the ink servant.

Casually washed his hands and face, Cheng Jinzhou did not use soap that smelled very good, the soap of this era is very complicated, including angelica, white aconite, pig tooth soap, camphor, almond, soybean flour, etc. So since the girl said it once, he doesn't use it anymore.

"Let's all get out." Cheng Jinzhou pulled the silk scarf to wipe his face, waited for the three of them to leave, pressed his fingers on the ring again, and thought desperately: customer service o1o, customer service o1o......

"Have you scraped together enough money?" Mr. Customer Service's tone was stiff.

Cheng Jinzhou looked up at Shi Mo, and asked first, "Did you hear that?" ”

"What?" Shimo blinked.

"What can you see?" Cheng Jinzhou asked again.

Shi Mo shook his head cautiously and said, "I didn't see any special ......"

Cheng Jinzhou was relieved again, and while walking out, he said in a low voice: "Enough, it's there in 1 minute." ”

"Press the button when you arrive, the ring will be automatically received, you can also set the number, currently your Star Alliance points are 1, the level is 1, and when you reach the third level, you can have your own trading platform." After the customer service O1O finished speaking, only a big virtual button was left, and there was a white place to enter the number next to it, just like a search engine in later generations.

It was very unpleasant to be ignored, and Cheng Jinzhou was helpless, so he first entered the setting of 7.2 yuan, and then slowly paced to the warehouse in the backyard.

The grain of 9o stone is about 4.5 cubic meters, and all of it is piled up in a small warehouse, and the surrounding area is clean.

Waving his hand to let everyone leave, Cheng Jinzhou pressed the big button of void.

The familiar confirmation and cancellation jumped out, and then a large selection box appeared, which included not only rice, wheat and sorghum, but also wood, bricks, tiles, silk and other things, and even counted everything within 1o meters of the surrounding area.

Cheng Jinzhou sighed with emotion, after crossing, he thought that he had been insulated from it since then.

After selecting the wheat easily and skillfully, I saw that the wheat pile was reduced little by little, and it looked like it was about two or three minutes, and the voice of the customer service o1o came again: "The transaction is successful, you can choose to read." ”

Cheng Jinzhou couldn't wait to look at the chest-high position, and saw a paper 8-folio book appeared in front of him, surrounded by thick smoke, if others could see the content of the ring, they would even think it was a speech posture.

"Geometry Original ......" is followed by publishers and translators. Cheng Jinzhou read it word by word, and his face gradually darkened.

He studied theoretical physics for 8 years, although the results were miserable, but even if it was plagiarized papers, it was necessary to consult the materials, according to the chronology, although the geometry was originally quite suitable for the Middle Ages of the Great Xia Dynasty, but the content in it was not at all what he needed now.

From a historical point of view, the Geometry Primitives have infinite significance, and it is not an exaggeration to say that it is even the pioneering work of classical mathematics, that it is the Geometry Primordial that establishes the rigorous logical argumentation method that is most commonly used and most hated by today's secondary school students - because "the proposition that has been proven" is "the thing to be proved is correct", and there is a very famous method of counterproof, which was never thought of by Mr. Euclid before Euclid.

For the Chinese, Xu Guangqi's translation of "Geometric Original" is also influencing all the time. It was the translation of Tong Guò's Geometry that Chinese defined the most basic terms of today's geometry: point, line, straight line, parallel line, angle......

The translation of these basic terms is clever and clear, and it shines brightly on its own.

It's a math bible!

However, Cheng Jinzhou doesn't need bright brilliance, he wants to make glass, make mirrors, even if it's to make fire. The original content of geometry, except for the process of proof, is all junior high school content, and it does not have any guidance in the application of the most needed application of the crossing multitude—it can be done after two points and can only be made in a straight line; Line segments (finite straight lines) can be extended indefinitely; All right angles are equal, and if a straight line intersects two other straight lines in the same plane, if the sum of the two inner angles on the same side of the straight line is less than 18o°, then the two straight lines must intersect on this side after being extended indefinitely.

These five points are astonishing in ancient Greece for thousands of years, but they are of no value at all to Dr. Cheng in the 21st century, even if they are placed in the Great Xia Dynasty, similar understandings are not new.

"It's a pity for my money." Cheng Jinzhou shook his head lightly and casually flipped through the geometric originals in front of him.

In the whole book, the most practical value is still to calculate the theorem proof based on the five public assumptions, if you want the bad student Cheng Jinzhou to do it, he may not be able to complete it, to say that this book is not worth a few taels of silver, Cheng Jinzhou, who claims to be known in the academic world, is not easy to open this mouth.

"O1O, another book." Cheng Jinzhou pouted.

"Do you want to delete this book?" Mr. Customer Service replied quickly.

Cheng Jinzhou raised his head in surprise and said, "Of course not." ”

The study of star arrays is mainly the study of astronomy, and the basis of astronomy is naturally mathematics and physics. The Great Xia Dynasty lagged far behind other countries in the study of star arrays, and it was not a problem for such a very basic book to sell for a few taels of silver.

The customer service o1o said unconcernedly: "Due to your Star Alliance level, your terminal can only keep one book at a time." ”

"No wonder that playboy book was collected so quickly." Cheng Jinzhou muttered.

The ring said without any emotion: "Are you sure you want to buy a new book?" ”

Cheng Jinzhou shook his head first, and then said, "At least I can copy it." ”

"Of course."

Cheng Jinzhou walked out of the warehouse with a sad face, others couldn't see the content of the ring, and now it was not an advantage.

……

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