Greetings, Mister Principal

The commotion caused by Reiner spread quickly after the exam, but none of the three involved publicized it, so everyone only knew that Reiner's spell damaged the obsidian slab in the test. As for the details, there were different opinions.

But these had nothing to do with Reiner and his students.

After they finished the exam, they returned to the hotel. Mr. Osborne invited them to a celebration banquet. Then, early the next morning, Reiner embarked on a journey back to the academy.

Arriving at Luna Nova Magical Academy was already dusk, but the affairs that had been left in the past few days didn't give Reiner any room to breathe. The alchemy creatures of the school immediately handed Reiner several letters.

He simply ate the sandwich, and then opened the first one.

This was the paper review letter from Rainbow Tower.

Dear Mr. Reiner Ian Gray, for your paper "A research about a new coordinate system and the functional equations of ellipse, hyperbola, parabola, and other curves in this coordinate system.", the review committee made the following review after careful consideration:

The research on mathematics and physics in the thesis is groundbreaking. The polar coordinate system established by it can effectively solve the curve problems that frequently appear in the construction of magic models. The derivation and induction of several common curve function equations are rigorous and detailed, and its thinking method is worthy of promotion. The optimization effect of several spell models is obvious, and it has great reference value.

The paper is approved, and you will be rewarded thirty academic points."

"Thirty..."

Reiner put down the letter. Although he knew that the number of bonus points for papers on mathematics had not been high, thirty seemed to be too few.

It was true that thirty academic points were already a huge reward for an apprentice, but Reiner now had 350 original academic points in his hand, which meant that his potential value had exceeded three thousand points. In comparison, these thirty academic points were indeed insignificant.

However, no matter how few it was, academic points were not only related to the evaluation of schools and individuals, but also the materials and magic related to middle-level and above spells could only be exchanged by academic points. So it was no problem to accumulate more now.

Of course, these were all introduced to Reiner by other mages. After entering the middle level, the world's money had lost its meaning to mages. The materials related to the casting of middle-level spells, the thesis and monographs that record the middle-level magic, and the right to use some demiplanes all required academic points. It could be said that academic points were the gold of the magic world.

"Forget it, that paper was not difficult anyway."

Reiner didn't think too much about it. The theory of mathematics was important, but as many mages believed, mathematics was just another tool in this world. High-level mages were like a computer with huge computing power and the kind that had matlab. Even if there was no optimal algorithm, the result could still be produced by the method of exhaustion. In many cases, mathematics only played the effect of induction.

Reiner had a deep understanding of this point after engraving the spell model in his heart lake. He had not yet formally advanced. He only had the quasi-firth ring strength, but most of the high-level equations could be solved in his mind in a few seconds. Reiner was not sure if others were like this, but at least he himself was currently a humanoid calculator, and the mathematical formulas of high school level had lost meaning to him.

Putting this letter away, Reiner picked up the other three letters.

Those were sent to him from alchemy workshops in other provinces. They were like Mr. Osborne, hoping to obtain the exclusive dealer rights of Luna Nova Cola in their provinces. This was also the effect of Reiner's previous publicity. He would set up exclusive dealers in each province to authorize them to be responsible for the distribution of Luna Nova Cola. He only needed to contact these dealers.

These letters were all attached to the financial report of the alchemy workshops in the last year requested by Reiner, and Reiner used this to judge whether the other party had enough capability to become a dealer.

Nowadays, Luna Nova Cola was already a popular brand-name product. The Master Cards had also been updated to the third edition, with a total of seventy cards. In fact, since the third edition, Reiner had recruited a group of painters from the outside world to reduce the workload of Sharon.

Antoine was busy improving the production line. During the Reiner exam, he had already set off to the two alchemy workshops in the Rainbow Tower authorized by Mercury Balance to learn advanced production technology. Perhaps after years of stagnation, Antoine could again advance.

It took about an hour to read these letters, and Reiner stretched before looking at another letter.

This letter was obviously different from the previous letters. The light yellow cover was exquisitely made. Turning it over, the wax seal with the emblem of the shining star was unfamiliar to him. There was also a small package along with this letter. Not heavy, but like a book.

On the envelope, the words "Aster Kingdom, Ann Monet Province, Prester, Luna Nova Magical Academy, Reiner Ian Gray" were written in thick and steady fonts, and the sender was "Wilder Regens".

"Wilder Regens?"

Reiner vaguely felt that the name was familiar. He checked the magic signature on the letter and found that it was the emblem of the organization Stargazer.

"The stargazers... should be the organization of mages who focus on studying astrology, right?"

Talking to himself, Reiner opened the letter and read it carefully.

After a long time, he put down the letter paper and sighed.

"I only thought that the three laws of motion had been proposed, but I did not expect that the three laws of planetary motion had not yet been born."

This letter was a letter of thanks from the high-ranking mage Wilder to Reiner. Thanks to the polar coordinates paper by Reiner, Wilder successfully verified his three conjectures and obtained feedback from the world. And now, he was only one step away from the ninth ring, and in that package was the supplement of the Astrologer Monthly, which contained Wilder's thesis.

Because on the earth, Kepler's three laws predated Newton's three laws, Reiner subconsciously thought that someone had already discovered that in this world, but he did not expect that it was his own polar coordinates thesis that promoted Wilder Regens' verification.

However, Reiner then thought again. To verify the three laws of planetary rotation required a large amount of observational data. According to Wilder, he got those three conjectures from a large amount of data from his professor, plus his decades of observational experiences, so even if Reiner knew these three laws, he would not be able to prove it without data.

The feedback of this world was not simply obtained by writing formulas, but required an understanding of its essence, and the summary after a large number of experiments. It was like Reiner knew the mass-energy equation, but without the support of experiments and pre-theories, this was just a formula.

On the other hand, Wilder also expressed his gratitude to Reiner in the letter, which was equivalent to the other party owing him a favor, and it should be able to come in handy in the future.

"How about letting him be the spokesperson for Ian Gray's teaching materials?"

Reiner suddenly had this thought. He put down the letter and opened the last letter.

Surprisingly, however, this letter came from a person with whom Reiner had never dealt before.

Chester Christine, Dana's uncle