Chen Luo looked at the girl blocking the road, squeezed a stiff smile on his face, and said, "Senior Sister Isabella, what a coincidence..."

Isabella looked at him with a little resentment on her face, but she was more dissatisfied. She gritted her teeth and said, "I didn't expect you to be the Blair that Teacher Britney said..."

She had long wanted to know the second-grade junior who had a talent for mathematics mentioned by Teacher Britney.

Of course, at that time, she had a relatively thought in her mind, but for several days, every time she went to his classroom, he would "stop" away. Once or twice was a coincidence, and ten times, it must be that he was deliberately hiding.

After Isabella investigated, she found out that what Teacher Britney said was the rude person who bumped him twice that day, a famous magic waste at St. Donas Academy.

Of course, it's not now.

A few days ago, after the story of that magic practice class was spread, Blair was called the fastest man in the entire second grade. Even most third-grade students could not compare to him in terms of the speed and stability of performing fireball skills.

However, after knowing Blair's identity, no matter whether he is a mathematical genius or a magical genius, it is not something Isabella cares about.

This rude person actually covered her mouth while he was reciting a magic spell, interrupting a magician's casting in this way - is this what a human does?

For a lady, this is also an unforgivable humiliation.

Thinking of this, the anger that had finally been extinguished in her chest reappeared again.

Chen Luo saw that Isabella's flat chest began to fluctuate, and was worried that she would summon a fireball again. The appearance of a beautiful figure in the distance finally allowed him to see the dawn of hope.

"Teacher Britney!" Chen Luo greeted Teacher Britney in a distance.

"It's Blair, I'm going to find you." Teacher Britney quickly walked over with a smile on her face and said, "I have something to tell you."

When Isabella saw Teacher Britney, she temporarily suppressed the anger in her chest.

Chen Luo has a great impression of Teacher Britney, not only because of Blair, but also saw her persistence in mathematics.

Teacher Britney said embarrassedly: "About what you said, if a set of numbers starts from the second term, and the difference between each item and its previous term is equal to the same constant, then their sum can actually be described by the same simple formula. I have found this formula and wrote a paper that has just been selected by the journal. Because the appearance of this paper was inspired by you, this article was jointly signed by us."

The reason she was embarrassed was that this article was inspired by Blair. Blair obviously had discovered this rule and could quickly find this formula. She was suspected of stealing students' research results.

Isabella opened her red lips slightly and looked at Teacher Britney in shock. She was Britney's student, and of course she knew what co-signation meant.

Although this formula is not a major discovery, it has very clever thinking and has pioneering significance. It can be predicted that it will even appear in future textbooks. In other words, it is very likely that the Britney-Blair formula will appear in the textbooks she learned in the future...

From then on, all the beginners of mathematics could not avoid Blair's name.

Thinking of this, she suddenly felt a sour feeling in her heart.

For Chen Luo, it doesn’t matter whether he signs or not. He only cares about magic. Giving him a useless paper is better than giving him some silver coins.

Using magic is a very mental and physical activity. Chen Luo is not full of two pieces of bread every day. Blair's pitiful savings can't even last for half a month. The biggest problem for him to come to this world is to fill his stomach.

Teacher Britney seemed to have thought of something, handed him a small cloth bag with flowers embroidered, and said, "These are fifty silver coins, which are the rewards of the Mathematics Association. I think it should belong to you..."

Chen Luo's remuneration for working as a handyman in the library is to keep food and accommodation, two silver coins a month and fifty silver coins. He needs to earn two years and one month.

No wonder Britney said that scholars, like magicians, are also respected in this world, not only respected, but also profitable.

With these fifty silver coins, he would not have to worry about hunger for a long time.

Of course, Chen Luo would not refuse stupidly. He reached out to the wallet with one hand and said politely: "How can you be so embarrassed? There is at least half of the credit of Teacher Britney..."

"Then I'll take half of it." Teacher Britney took back her purse, took half of the silver coins from it, and handed the rest to Chen Luo again.

“…”

Because of his polite words, half of the fifty silver coins were missing, and Chen Luo wanted to slap himself.

However, it seems that Mr. Britney is not a well-off person, so Chen Luo no longer cares about it. Without her, Chen Luo's own paper would not have been valued by the Mathematics Association and would have been handed over to the reviewer.

Even so, Chen Luo still felt a little sorry for the twenty-five silver coins. He thought for a while and suddenly said, "I was thinking recently that if a set of numbers starts from the second term and the ratio of each item to its previous term is equal to the same constant, then will their sum be described in the same way as in the previous case? "

The summing formula of the arithmetic sequence has come out, and the arithmetic sequence naturally cannot be left behind. After all, these are fifty silver coins...

Teacher Britney looked at him suddenly and asked, "Are you talking about the mystery of Raus?"

"????" Isabella looked confused: "What mystery?"

Chen Luo spent the past few days in the library, and almost finished reading the history of magic, mathematics, science, and nodded after hearing this: "Yes."

These days, Chen Luo was surprised to find that the development laws of mathematics seem to be unified. Whether it is the mystery of Ames in ancient Egypt in another world, the "Going out to look at the Nine Dikes" in the ancient Chinese "Sunzi Jing" or the "Mystery of Raus" in this world, they are all problems with equal sequences.

The description of the mystery of Raus is: Raus has seven wives, each wife has seven pockets, each pocket contains seven cats, each cat has seven children, ask the wife, pockets, big cats, and kittens in total...

This problem seems a bit boring, and no one will add these things together. Compared to these irrelevant things, people may be more concerned about whether Rauss' kidney is good, but it is still necessary to study it if you treat it as a purely mathematical problem.

As an equal-scale sequence, there are not many terms in the mystery of Raus, and you can get the answer by adding one by one, but what if there are ten, twenty, and fifty?

If there is a formula that can summarize the sum of arrays with this rule, this is another major discovery in the mathematics community.

Unlike arithmetic sequences, arithmetic actually appeared earlier than the sequence, and corresponds to the famous mystery of Raus. If you can use a simple formula to solve the mystery of Raus - the Mathematics Association does not reward one hundred silver coins, would it be a bit unreasonable?

Teacher Britney asked: "You mean, can you summarize questions like the mystery of Raus?"

Chen Luo nodded and said, "It's just a little preliminary progress."

Teacher Britney grabbed his wrist excitedly and said, "Go to my room and say!"

Watching Teacher Britney dragging Chen Luo toward the teacher's dormitory building, Isabella stomped her feet and followed quickly.

...

The derivation of the summing formula of equal-grade sequences is very simple, but before modern times, both mathematics and science were very slow, not to mention that in this world that pays more attention to magic, mathematics and natural sciences cannot even be called the budding stage in Chen Luo's eyes.

Teacher Britney has a good math skills. After Chen Luo was inspired, she picked up a quill pen and wrote down several lines of derivation process on paper.

Looking at the formula she derived, Britney brought several arrays similar to the mystery of Raus and came to the same conclusion as her addition one by one.

"It's incredible that the mystery of Raus is about to be solved by us." Teacher Britney shined in her beautiful eyes. She looked at Chen Luo and exclaimed: "Blair, your mathematical talent is unparalleled. Are you really unwilling to study mathematics with me?"

“Gu…”

Chen Luo did not answer, but his stomach responded.

The last class in the morning was history class, and it is time to eat now.

"I almost forgot that you haven't eaten yet." Teacher Britney hurriedly ran into the kitchen, took out two pieces of cake, handed it to Chen Luo and Isabella, and said, "You guys eat something first, I'll calculate it a few more times..."

Chen Luo took the cake and finished it in two bites. This was the best thing he had eaten in recent days.

Isabella looked at Teacher Britney who was immersed in mathematics and knew that this was another amazing discovery. She had already predicted that a new "Britney Blair" formula might be released soon.

Originally, her competitive spirit drove her to compete with Blair, but how can she compare now?
Chapter completed!