During this time, while learning new magic, Chen Luo never forgot that he needed to find a new and stable way to make money.

He couldn't expect Gaya scholars to come to Lorrain every day to do things, nor could he expect to meet a Baird every day, which was simply unrealistic.

It's just that after he graduated in his previous life, he became a teacher directly, neither suffered from the beating of the society, nor accumulated any useful experience, in a short period of time, it is not easy for him to find a shortcut to make a fortune.

Chen Luo had to admit that he didn't have much business acumen.

However, after being reminded by the owner of the bookstall, it greatly inspired him.

The protection of intellectual property rights in the Divine Grace Continent is as strict as Chen Luo imagined.

In the 21st century, the earth has exploded in knowledge, how advanced science and technology are, how advanced human civilization is, piracy is still rampant, and although the Divine Grace Continent is backward, not many people dare to do this kind of thing.

Here, the status of scholars is to some extent indistinguishable from that of aristocrats, and over the years, it is unknown how many people have been sent to the gallows for violating the intellectual property rights of scholars.

Ahead of the curve, books are not cheap, often only wealthy scholars can afford them, and others can only borrow and transcribe them.

Writing a best-selling book on the Divine Grace Continent is more lucrative and stable than him solving the bounty puzzle and catching wanted criminals.

The books that sell well here cannot be fiction, but academic books.

Considering Chen Luo's own ability and influence, the preferred type is, of course, mathematics, with geometry as a subject.

Geometry is the oldest branch of mathematics, scholars have been studying geometry for a long time, although they have systematically established the entire discipline, but compared with Chen Luo's knowledge reserves, their current research results are less than one-tenth of modern plane geometry.

Asked Chen Luo to write a book on mathematical analysis, function theory, ordinary differential equations, partial differential equations, and functional analysis, Chen Luo really didn't have this ability.

But isn't it a coincidence ------ plane geometry?

As a mathematics teacher in the third year of high school, when it comes to plane geometry, he can follow the line of knowledge, from straight lines to triangles to circles, and then from circles to conic curves, and he can prove every theorem and its inferences involved in detail.

This is a basic skill for a math teacher.

After all, the mathematical ability of some senior high school students is actually stronger than that of teachers, and Chen Luo has put a lot of effort into this regard in order not to be asked by his own students.

Even some partial formulas and theorems that are not required to be mastered in textbooks, or knowledge points beyond the scope of high school, he has an in-depth understanding.

After coming to the Divine Grace Continent, his memory has been strengthened to a certain extent, although he still can't remember the bedwetting at the age of three, but for the teaching materials he saw not long ago, he still remembers it vividly.

If he could write a book that included all the geometric knowledge he knew, it should be very popular with the scholars of the Divine Grace Continent.

After all, the most studied mathematicians in the mainland are geometry, and Chen Luo's book can make the plane geometry of the Divine Grace Continent span thousands of years in one step and reach the level of the 21st century in the future.

This matter sounds like a huge amount of work, but the book compilers of later generations have helped Chen Luo solve most of the difficulties, and what he has to do is to sort out the knowledge in his head and then repeat it.

In a way, this is the "Geometric Original" of another world.

Even, for the healthy development of the mathematical community in the future, Chen Luo also avoided some flaws in the original geometry, after all, perhaps there are talented people in this world who can discover non-Euclidean geometry that is different from the existing geometric system.

In addition to buying a beautiful top hat for Isabella, Chen Luo also bought a silk scarf for Teacher Britney, and when she went home, Chen Luo remembered something and asked Isabella: "Senior Sister Isabella, which college did you apply for in the royal capital?"

Isabella rolled her eyes and said, "Royal Capital Academy of Magic." ”

Isabella's choice was the same as Chen Luo's guess, Chen Luo was a little melancholy about Isabella's imminent departure, but he also sincerely blessed her.

With her talent, it is possible to become a great mage or even a mage in the future, and Apo City is too small for her.

After entering the new semester, perhaps affected by the atmosphere of the third grade, the students in the class were obviously more motivated to study.

In another year, they will face the problem of graduation, and when the time comes, the better their grades, the stronger their magical skills, and the more choices they have.

In the next half a month, Chen Luo's time spent on magic was greatly reduced compared to before.

Not because he was slacking off, but because he spent most of his time compiling books.

Sharpening the knife is not a woodcutter, this book called "Geometry" is of great significance to the Luolan Kingdom and even to the Divine Grace Continent, and his significance is even far greater than the "Geometry Original" of another world.

After all, "Geometry Original" is a work that brings together the wisdom of countless people and Euclid's personal creativity, and more than 90% of the content of "Geometry" that is about to be published is the result of the scholars of this world who have not yet studied it.

Chen Luo almost put the plane geometry system perfected to the extreme in the 21st century in front of them.

Considering the impact of this book on the academic world, Chen Luo certainly has to do it in another capacity.

Blair is the devil, and the devil does things that destroy the foundation of the school of thought and erase the beliefs of others.

Chen Luo is a god, spreading knowledge and guiding human beings, this is what God should do.

Apo City, Mathematics Chapter.

In the new year, the city of Arpo is undoubtedly the mathematical center of the kingdom of Lorraine.

Countless mathematicians gathered here to witness the failure of the Gaya visiting scholar group here, to witness Blair's devil's trifecta, and the turtle puzzle that was forbidden to be discussed by the association.

In the matter of stopping the Gaya scholars, the Mathematics Branch of the City of Apor has played a great role, and in addition to the devil Blair, Calvin, the vice president of the Mathematics Branch of the City of Apor City, has the greatest credit.

Half a month ago, Calvin was promoted to branch president, and the word "vice" in the title was removed.

As the front desk, Gal also spoke with honorable and honored scholars from other places, all with his head held high, and he couldn't lose the face of the Arpo City branch because of him.

At this time, Gal watched a man in a black robe with a face covered walking in from outside, looked at him curiously, and asked, "What is the matter with you?"

Some time ago, there were a lot of people dressed like this in the Mathematical Association, but since Roselle disappeared and no longer appeared, there have been fewer such people.

Now he is still dressed like this, and he must be a staunch admirer of Roselle.

"It's me. ”

A deep voice came from under the black robe.

Hearing this, Gal's body trembled, and his whole body trembled twice.

This voice, how could he forget, how dare he forget?

Gal flushed and his voice trembled, "Please, may I ask you ......"

"Don't reveal my identity. Chen Luo got straight to the point and said, "Take me to Calvin." ”

"Okay, you, come with me. "Chen Luo's name, in the mathematical world, is supreme and irreplaceable, even if it is the devil Blair, it cannot be compared with him.

Gal swung his legs, and the distance from the first floor to the second floor of the president's room was not long, but he felt like he had walked for a lifetime.

In the president's room, Calvin sat behind his desk, thinking about a question for a long time.

Although this time, under the obstruction of Lord Blair, the Gaya scholars fled in defeat and saved Loren's glory, but Loren's scholars have to admit that Gaya, as the world's mathematical center, their mathematical level is still incomparable to Loren.

In recent years, a large part of the new theorems proposed in the mathematical community have come from Gaya scholars, which shows that their mathematical community is full of vitality and is not as lifeless as Loraine.

He is already the president of the Mathematics Branch of the City of Apor and has officially become a senior member of the Mathematical Association of the Kingdom of Loland, and he needs to think about the future of the Lorrain mathematical community.

Calvin was stunned when there was a knock at the door.

Calvin looked out the door and said, "Come in." ”

Gal walked in from the outside, looked at Calvin, and said in a trembling voice, "Yes, Lord, I, I ......"

Carl was anxious to speak, Chen Luo walked in by himself, looked at Calvin, and said, "I'm Chen Luo." ”

"Chen Luo, Luoshen!" Calvin instantly stood up from his seat, walked out quickly, and said excitedly: "Are you really Luoshen?"

Gal had already calmed down, and hurriedly said: "President, he is Lord Chen Luo, I remember his voice......"

Calvin, who is already the president of the Mathematics Chapter of Apor City, has seen too many big scenes in his life, he has seen university scholars, he has seen the Grand Magister, and he has met His Majesty the King, and it is the first time that he is so excited.

For at this moment standing before him is their God!

Not daring to lose his temper in front of him for too long, Calvin forcibly calmed down and asked respectfully, "Lord Chen Luo, what are you looking for me?"

Chen Luo laboriously took out as many as two hundred pages of the manuscript of "Geometry" from under the black robe, handed it to Calvin, and asked, "Do you want to buy a book?"

()