Heavenly Dao Formula

Those are some ghostly symbols.

Counting chips are not like counting chips, and words are not like words. Can this kind of thing really be called arithmetic?

"Um... where did you get this book?"

"Xia Fan made it up, and he asked each of us to copy it." Ning Wanjun sighed, "It was easy at first, but every time I turn a page later, the problem becomes much more difficult. I suspect Is he deliberately playing tricks on everyone?"

Xia Fan? She was shocked, this name... Isn't it the person Qiuyue mentioned!

Playing tricks has always been the best thing for ignorant people.

"You may... have indeed been tricked by him." Mo Yun said in a low voice.

"Sure enough, I just said that arithmetic can't be like this!" Ning Wanjun slapped the table and said, "But if it's you, it must not be a problem, right? Why don't you tell me what the content behind is all about? Let him rewrite it!"

Wait, could it be that the princess understands the previous content?

By the way, she said it was easy at first.

Mo Yun turned to the first page and found that there was a prologue. And in this part, it turns out to be the elaboration and explanation of various strange symbols.

The most important thing to fool others is to blur words and use words to guide consciousness. This person actually writes out the vague parts, which is worth pondering.

Forget it, it would be convenient for her to find out the other party's flaws fundamentally.

Mo Yun decided to start from the beginning, and then defeated Xia Fan's disguise in one fell swoop.

"Wait for me for a quarter of an hour, let me read this book through first."

"No problem." Ning Wanjun said expectantly.

...

"Mo Yun."

"Mo Yun?"

"Hey, how are you?"

Mo Yun suddenly woke up from the book, she looked at the princess, and the latter was also looking at her with concern, "Who am I?"

"Ning Wanjun...His Royal Highness?"

"How much is this?" The other party pointed out another finger.

"One... no," Mo Yun shook her head, and she realized what the other party was doing, "I'm fine, why are you worried about this?"

"Because of... rumors. I'm just afraid that you're insane."

"What are you talking about—" Mo Yun smiled, "It's just reading a book, by the way, how long have I been reading it?"

She suddenly found that her neck was a little sore.

Ning Wanjun stared at her for a long time, "One hour."

an hour? Mo Yun blinked in surprise, had he been looking at it for so long!

"And you only read a dozen or so pages." Ning Wanjun put a basket containing dishes on the side of the table, "During dinner just now, I saw that you were reading seriously so I didn't bother you. I didn't expect that you I didn’t even change my posture, luckily I asked Qiuyue to prepare a copy for you.”

"Thanks, but I'm not hungry yet."

"As expected, you are still the same as before." Ning Wanjun shrugged, "That's why I don't want you to go out and hang out in the palace. Speaking of which, what do you think of this book?"

"How about this book—"

These words were like lightning, reconnecting Mo Yun's disconnected thoughts.

By the way, I was indulging in between the lines just now, and the reason why I was so forgetful was entirely because of this book—"It's incredible!"

"What does it mean to be unbelievable?" Ning Wanjun asked.

"This is definitely a wonderful book, and..." Mo Yun was a little stuck at this point, how could she describe the meaning of this book? It would be wrong to say that it is extremely profound and mysterious. After all, even Her Royal Highness can understand it, so it is destined to be a basic teaching book. But to say that it is the same as "Nine Counting Books", that is definitely not the case.

It has innovated a lot of unique vocabulary and symbols. Those weird "ghost symbols" are actually various numbers and calculation forms. It was quite difficult to adapt at first, but after a long time, you will find that they are extremely concise and clear. It is more convenient to get up.

But these are not the point.

If this is the case, then it is only an improved "Nine Counting Book".

After pondering for a long time, she found a barely close word, "...thought."

"Thought?"

"The most precious thing about it is its thought—the meaning of this thought is not even limited to arithmetic!" Mo Yun took a deep breath, "If this book is spread outside, it will definitely cause a sensation."

Yes, it is thought.

It looks similar to "Nine Counting Books", and it also throws out many arithmetic calculation formulas and examples, but it is different from the latter's single isolated examples. It is a careful and rigorous derivation, one link after another. A simple to obvious description, step by step to build a broad picture behind!

And everything starts with the phrase "there is and only one straight line passing through two points".

Five axioms.

Five postulates.

All subsequent content is based on these few short sentences.

Because the former is correct, the latter deduced from the former must also be correct—even if it seems unintuitive, but in the face of iron-like logic, it can only be admitted that it is true. This is the meaning of this book.

Mo Yun felt that a brand new door had been opened.

Everything she had learned in the past seemed fragmented and unsystematic compared to the content above.

She didn't expect arithmetic to be so beautiful and regular.

"Is it as wonderful as you said...how can I not feel it?" Ning Wanjun muttered in a suspicious tone, "Forget it, you can stay here tonight and continue reading this book, but don't forget to eat .”

"I..." At this moment, Mo Yun suddenly wanted to remember why she came to Jinxia City, but she couldn't bear to put down the book in her hand for a while, so she couldn't help showing a dilemma.

Ning Wanjun smiled, and she sighed softly, "You really are the kind of person Xia Fan said is extremely talented."

"Why do you say that?" Mo Yun asked puzzled.

"When he gave this thing to us to transcribe, he once said a word - anyone who can't feel the beauty of the content in this book has no talent to become a great scholar. Although I don't know what the title of a great scholar is, it is obvious that You are entitled to it."

"Xia Fan, where is he now?"

"It should be in the residential area of ​​the alchemist. I forgot to tell you that he is a privy alchemist. He has been promoted to the fifth rank now, and he is working in the command department."

Mo Yun noticed that when the princess mentioned this person, her tone was full of complacency.

"Can I see him?"

"Of course," Ning Wanjun replied, "I think he also wants to meet someone who can appreciate this book? By the way, this guy seems to know a little bit about everything. If you have any questions that have puzzled you for a long time, You might as well talk to him. Maybe he can give you some different advice."

How is it possible, the problem of the Ministry of Industry cannot be solved by a layman.

Although she thought so in her heart, Mo Yun didn't say it out loud, because she could feel that the other party had good intentions. So she just nodded slightly, "I will."

...

The next day, Ning Wanjun took her to the beach.

Mo Yun's eyes were a little swollen due to studying that incredible arithmetic handbook all night, but mentally, she didn't feel sleepy at all, and she even looked forward to continuing to light up the night battle after returning home.

It's just that she doesn't quite understand why Xia Fan, who is an alchemist of the Privy Council, stays in places like the seaside during the day.

After asking about the confusion in her heart, the princess laughed softly, "Because he is in charge of building a brand new salt field for me."

"Salt field?"

"Well, it looks like a rice field, but it produces sea salt." She pouted forward, "Look, we're here."