This is like in later mathematics exams, you only wrote the final result of a big question, but there was no calculation process, which made the paper-making teacher feel embarrassed. I don’t know how you calculated it, whether you copied it, or misunderstood it.

In the absence of a numerical symbol system, it is obviously very difficult and cumbersome to express the calculation process in full text.

Another point is that the writing method in ancient China was vertical writing, which was very inconvenient to express numbers and calculate. You can imagine how awkward it was.

Li Chunfeng is not a person who is not as good as the old and conservative. He can achieve considerable achievements in mathematics, astronomy, calendar, etc., which is inseparable from his diligent study and apprenticeship.

Convenient, intuitive, concise, clear at a glance, and easy to summarize the algorithms and reveal quantitative relationships to facilitate reasoning. This is the evaluation of the numerical symbol system given by Li Chunfeng.

Of course, Xu Qilin agreed with this and said to Li Chunfeng with a smile: "Dr. Li is fully supported by this proposal. He also wanted to have a competition with the Imperial College School to prove the convenience and easy learning of this number symbol!"

Li Chunfeng thought for a while and said, "At the same time, I think I'm going to learn "Elementary Mathematics" much faster."

Fast is certain, quick success is also absolute, Xu Qilin is very confident about this.

"So, the students of the Dayingku Mathematics Academy are undoubtedly winning!" Xu Qilin smiled proudly, as if he had seen the black faces of the defeated Imperial College.

Li Chunfeng smiled and thought that Xu Qilin was still young and had a young mind. So what if he defeated the Imperial College? His background cannot be changed, and he is still a noble family.

Of course, numerical symbols have been taken seriously, and students at the Dayingku Mathematics Museum also have more ways out, which is an indisputable fact.

"This "Elementary Mathematics" is just the first volume, when will it be printed in the second volume?" Li Chunfeng didn't care about who lost and who won, but wanted to get a glimpse of the full picture of the numerical symbols. "I am looking forward to it very much, which will be of great benefit to my mathematical improvement."

"It should be soon?" Xu Qilin scratched his head and said, "I have already handed over the craftsman to cast a font. I have been busy recently and forgot to ask."

The casting of numerical symbols is also a big project, which costs a lot of money, and the layout must be done by Xu Qilin himself. No one understands this calculation formula yet!

Li Chunfeng pondered for a moment and said, "If Xu Cheng is busy with official business, he can also help him."

Xu Qilin thought for a while and said, "Then please ask Dr. Li to Dayingku tomorrow to help type and print the book!"

As he said that, he accused him of guilt and went to the study to get the draft for Li Chunfeng, "Dr. Li will review it first to see if there is any error."

Li Chunfeng hurriedly reached out to take it and looked through a few pages. Although the handwriting was sloppy and the strokes were not like those written by a brush, he was reading the content. After the book was printed in the second volume, the entire digital symbol system was basically perfect, which was of epoch-making significance.

"There is a wonderful idea, concise and concise." Li Chunfeng praised and said, "Just this reform alone will be enough to leave his name in history."

Of course, without these numerical symbols, how to discuss more complex abstract issues and how to do calculus? Go, I hate calculus the most!

Xu Qilin pretended to be humble and sent away Li Chunfeng, who was eager to go back to read the draft of the study.

When I returned to my yard, I saw Scarlett and Ajiani, two little girls, were busy with their own work. One was eating melon seeds while drawing, while the other was lying on the table with an abacus.

That's right, it's just abacus. Ancient calculators are very simple to make and very convenient to use.

"Alang is back." Scarlett heard the footsteps, threw down the work at hand, stood up to greet him, and helped Xu Qilin wash his face and change his clothes.

When is her own Alang the most important thing? Scarlett is a good girl.

Ajiani almost pretended to get up to greet her, and called Alang. Seeing that she was going to serve her, she sat down again and stared at the bird eating on the stone table, as if she was sketching.

Xu Qilin glanced at the lazy girl and shook her head, but in a blink of an eye, Scarlett felt comfortable serving her attentively.

With a smile, he touched the girl's face. Xu Qilin leaned into the sofa, and his shoulders and neck were pinched comfortably. Xu Qilin hummed twice and asked lazily: "Who is here to give me a gift again? We don't want to do that if we don't know where we are."

Scarlett giggled twice and said, "I dare not refuse this, it was given to Alang by the royal family."

Xu Qilin was stunned for a moment and said, "Don't give it to me in person, I want me to thank you or something?"

Scarlett shook his head and said, "I sent it to the mansion during the day. I guess I saw that Ah Lang was not there, so I put it down and left."

Xu Qilin smiled and said, "This is a waste of time. Well, I didn't open it and see. Your Majesty's reward should be a good thing, right?"

Scarlett stopped, pulled Xu Qilin and smiled, "It's better to open it yourself. The royal property is very noble, and I'm not good at touching you casually."

"How could there be so much to say." Xu Qilin had no choice but to be pulled by Scarlett to approach and reached out to open the box.

Scarlett stared at the two bowls in the box and exclaimed, "What a beautiful bowl!"

Xu Qilin picked up a carefully scrutinized, then bounced it with his fingers, and felt it was made of glass. Looking at the shape and appearance, he knew that this was an imported goods transported in through the Silk Road.

Even if it is imported goods, the quality is much worse in later generations. The texture is impure, turbid and blurred, and you can still see the bubbles in it.

Strictly speaking, in ancient China, there was only glass and its production technology, but there was no glass. The chemical composition of glass and glass was different and should not be confused.

At this time, even Western glass manufacturing technology is rough and imperfect. It will take about 600 years before Italy has made a breakthrough in glass manufacturing.

Although this is a way to make a fortune and make a lot of money, Xu Qilin had long thought of it, but he has never taken action. The patent law is one of the conditions he expects and hopes, and the other reason is that he does not want to be too high-profile and too noticeable.

Xianglu's monopoly is already jealous. In addition, glass and glass mirrors make huge profits enough to make people crazy.

Xu Qilin knew this well and had been weighing whether to continue to have exclusive monopoly, cooperate in business, or hand it over to the royal family to exchange for official ranks and rewards.

"I give it to you for food." After Xu Qilin finished appreciating, he gave it to Scarlett.

"This is too expensive." Scarlett wanted to return it to Xu Qilin. Seeing that he smiled and did not reach out, he was afraid of falling, so he had to hold it carefully, as if it was a priceless treasure.

A Jiani also came over at some point and asked with a smile: "Alang, is there anyone from my family?"

Xu Qilin waved his hand like a nouveau riche, "One of you two, one of you, I'll take this bowl of rice in the future."

Oh, Ajiani smiled so hard that she showed her teeth. Like Scarlett, she touched her first with great care before she took it out and looked carefully.

After a few years, this will be the usual fun. Cups, bottles, and jars are all made of glass. Well, glass bottles with fragrant dew are so beautiful!

Xu Qilin looked at the two little girls who were dying, couldn't help but smile and turned back to lie on the sofa.

It was not long since time was coming, Scarlett put the bowl back into the box and came to serve Xu Qilin again, but he pulled it to the sofa and hugged it.

Scarlett giggled, and saw Ajani staring at the glass bowl, and then pecked Xu Qilin's face quickly and lightly, and a blush immediately appeared on his face.

I can't eat this. If you kiss me, I have to kiss you back.

Xu Qilin kissed the girl on the face, leaned back, and smiled with satisfaction.

Scarlett held Alang's arm, calmed his mind and said, "Alang, I want to learn riding a horse, so tell me a little."

"Riding a horse?" Xu Qilin was stunned for a moment, shook his head and said, "You are still young and can't ride that big horse. By the way, why do you want to learn this?"

Scarlett lowered his eyelids and said warmly: "I know that Alang is going to go far, is it Luoyang? If I can ride a horse, I will be able to serve Alang."

Xu Qilin patted Scarlett's hand and said, "There's no need to ride a horse, it's the same with a car."

"It's uncomfortable to ride a car, it's not convenient." Scarlett looked at Xu Qilin with blue eyes and begged: "Just tell the servants, it's not troublesome."

Xu Qilin nodded helplessly and said, "I'll buy you a pony to practice first, and then change to a big horse if you are proficient."

Scarlett nodded vigorously and tied Xu Qilin's arm tighter intimately.

…………………

Superstition and science are both scientific. This statement sounds very strange, but I have become accustomed to Xu Qilin.

After experiencing the underworld, there is a soul-detaining order in my body. If you don’t want to admit it, it’s difficult to be a materialist!

At the beginning, Xu Qilin also thought about whether there were ghosts wandering around, but he couldn't see it.

Of course, this scene is a bit weird and terrifying. He could think of a solution, just not think about it, and repeatedly encourage himself in his subconscious mind. In the human world, ghosts are not scary, there is no hindrance or impact.

And until now, this is true. There are no supernatural events, no evil spirits entanglement, and no human-ghost love in the Stories from a Chinese Studio.

But as he used the Soul-Retention Order frequently and became more proficient, a strange feeling that was inexplicable and occasionally appeared from time to time.

Sometimes, he felt like he was being peeped, looking around, but he found nothing; sometimes he would suddenly wake up in his sleep, as if he was a mysterious sixth sense warning.

Troubles are inevitable, but Xu Qilin didn't take it seriously, nor did it affect his work and life. He also felt that it might be because he was too sensitive.

Because Xu Qilin had to recognize the underworld and ghosts and gods, but he also had his own considerations and judgments. The so-called human beings are human, and ghosts have ghosts. The existence of two different forms should not disturb each other and be at peace.

As for evil ghosts and evil ghosts harming people, Xu Qilin thinks that it is because people have done something wrong, they are restless all day long, and their illusions are just because they are scaring themselves.

But things often go beyond people's expectations and imagination. Xu Qilin doesn't want to deal with ghosts, nor does he expect any beautiful female ghost to seduce them, but something related happened that made him unable to avoid them.

Of course, Xu Qilin didn't take it seriously at first. After receiving a report from Xu Bao, the manager of the village workshop, he just asked him to go to the Taoist temple or the temple to ask someone to go to the ritual to spread the talismans, thinking that everything would be fine without him taking action.

But Xu Bao soon sent someone to report, and the monks and Taoists invited them, but after only two days of quit, strange things happened again and again, which made the workers a little nervous.

Even Mrs. Zheng wrote a letter and tactfully invited Xu Qilin to the village. Even she, A Ke and Xiao Zhao seemed to have been affected.

Xu Qilin couldn't sit still now. He did not dare to be negligent when it came to his relatives. Guan Li Chunfeng asked for a few talismans, so he took his men and horses to the village.

On the surface, the farm is still the same, and it is normal to meet a farmhousekeeper, and it does not give Xu Qilin any special feeling.

Going to find the girl anxiously, Xu Qilin saw Xiao Zhao in the small building by the lake. Seeing that she was very happy and healthy, she felt relieved.

Zheng Tuantuan didn't say anything, and after the noise, he went to the bench by the lake to sit on a leisurely seat. Xu Qilin felt that she wanted to talk to her alone, so she sat in the building for a while, and went to find Mrs. Zheng while Xiao Zhao was not paying attention.

"Miss Zheng, what is the strange thing mentioned in the letter?" Xu Qilin met Zheng Tuantuan by the lake, and then asked in a mountainous manner: "I didn't say it very clearly, which made me very worried."

After Zheng Tuantuan finished showing his salute, he frowned slightly and said, "Maybe it was because I was suspicious, or maybe there was really something unclean. If I say it, it will be decided by Alang..."

There must be ghosts in this world, but Zheng Tuantuan does not have yin and yang eyes, how could he notice it? Xu Qilin listened to Zheng Tuantuan's narration with confusion, and finally understood the whole story.

The so-called unclean things are not felt by Zheng Tuantuan, but by A Ke. Although she is a blind person, her other senses are very sharp, such as smell, hearing, and even the sixth sense, which are far beyond ordinary people.

It was precisely because of these keen senses that she sometimes noticed something approaching, but when she spoke to remind her, Zheng Tuantuan found nothing.

If it happens once or twice, Zheng Tuantuan will think it is A Ke's illusion. But she also found that Xiao Zhao occasionally had something strange, as if she was talking to someone, and as if she was talking to herself.

When there were rumors on the workshop, Zheng Tuantuan recalled these things and felt it was necessary to notify Xu Qilin. No matter whether it was a matter of or not, he had to figure it out before he could feel at ease.

After hearing this, Xu Qilin didn't feel that it was serious. But when it came to the girl, he didn't dare to take it lightly, so he thanked Zheng Tuantuan and went straight to Xiao Zhao to ask him in person.
Chapter completed!