My subject turned into a beautiful girl

"I?"

An Yi wiped the cold sweat from his forehead. Of course, he knew who Ramanujan was. This legendary mathematician's outrageous abilities were so powerful that they had become a meme on the internet. He was the legendary "God of Staring Contest," "The Person with the Most Amazing Attention," and "The Master of the Way of Thinking."

I'm attacking Ramanujan?

"Isn't that a bit too much?"

"So we still need to develop it further! Okay, let's use the value b≈-0.84124, you calculate... what do you 'feel' the value of r?"

As An Yi had expected, Xia Qing became interested. While asking questions, she also took the opportunity to write a standard equation for a circle on the graphing calculator, continuing the Y₁Y₂ input from An Yi, with the center coordinates being (2, -0.84124).

The character persona had already been established, and An Yi had no way out. Fortunately, he had left himself some room for explanation from the beginning, so he could continue to portray the character relatively naturally.

The steps to solve for r are to substitute the value of b into the previous equation, first solve for x₁x₂, then solve for y₁y₂, and finally solve for r.

Because b uses an approximate solution, r₁ and r₂ will naturally not be exactly the same, but the error will be on the order of 10^-5. This level of precision is perfectly sufficient for plotting function graphs; simply find the average value of r₁ and r₂ and substitute it in.

This is a purely numerical calculation with no difficulty whatsoever. An ordinary person could easily calculate it using only pen and paper, given enough time. For An Yi, whose computational abilities have been greatly enhanced, it's practically effortless.

"It should be this one."

An Yi spoke in a declarative tone, using a question as a statement, and wrote r=0.20537 on the draft paper.

Xia Qing neither agreed nor disagreed as she entered the numerical values ​​into the equation, and then pressed the F6 key.

The graphs of the functions Y₁Y₂ and eq₁ gradually emerge on the color screen of the CASIO graphing calculator, precise, elegant, and flawless. Ignoring the parts that have not yet been defined by their domains, the outline of the function is already a standard small curved eyebrow, like a crescent moon lying across the universe.

The light screen appears—

Mathematics used the drawing method you provided to create the picture you wanted. The picture was simple: a small, curved eyebrow. Her hand was so steady that even the world's greatest painter could not match it.

Math is great!

[Mathematics' favorability towards you +1]

An Yi subconsciously looked at the portrait above the light screen. The girl with long silver hair was still expressionless, her clear eyes as blue as the sky.

The content depicted on the screen corresponded so perfectly to reality that for a moment he couldn't tell where he was. It seemed as if there really was such a girl beside him, who, after being hurt countless times, had once again softened her heart and painted this picture, her eyes crinkling and her smile gentle.

Thus, there was a certain anticipation, a hope that she would truly come to life as described.

Even if it's not a vivid and lifelike depiction that perfectly matches the description, but rather a look of disgust based on a degree of liking... it still seems quite beautiful.

Light screen content changes —

As the affection level increases, the character art of the heroine in the currently pursued dimension will also be upgraded.

Is it really possible?

An Yi was taken aback, followed by a natural surge of joy.

Unlike ordinary joy and happiness, it comes from anticipation of the future.

He hadn't felt this kind of joy in a long time.

"How many points did you get on your math test this time?" An older brother's question suddenly came from the side, instantly pulling An Yi back to reality.

"91..." he answered subconsciously.

"How could someone with that ability get a 91?"

Xia Qing felt that she would be confused more times today than in the entire previous month combined. She blinked her bright eyes repeatedly, and then suddenly realized.

"Is it because you haven't studied it? Your ability is only sensitive to numbers in calculations, so without knowing the formulas, even the most sensitive ability is useless!"

"That is indeed one reason, but there is another important factor at play, which is that this ability is not under my own control."

An Yi finally found an opportunity to say the excuse she had prepared beforehand.

"I don't know when it will appear or when it will disappear; the whole process is completely unpredictable. When it appears, I am indeed very sensitive to calculations and numbers, but as soon as it disappears, I become an ordinary person again."

"It works sometimes and it doesn't... You're Duan Yu, right? The Six Meridians Divine Sword, isn't it?" Xia Qing readily accepted An Yi's explanation.

"The Six Meridian Divine Sword, it must have six meridians."

An Yi smirked, "I should call this 'One-Finger Zen,' whether I can actually use it depends on luck!"

"One-finger Zen is enough, even if you can only use it occasionally... Just treat it as an Easter egg; it's best if it appears, but it doesn't matter if it doesn't. There are countless martial arts in the world, but whether you can become a martial arts master ultimately depends on how profound your internal strength is."

Xia Qing spoke with the air of a martial arts master, "If you had thousands of years' worth of internal energy, you could kill the Sweeper Monk even if you just threw wild, random punches!"

"Brother, I understand!"

An Yi asked respectfully, "So what should I do next?"

"Of course, we should use your one-finger technique as much as possible while you still can."

Xia Qing rubbed her hands excitedly, as if An Yi's plan to "amuse his older brother" had been a resounding success.

"Come on, let me see the limits of your talent!"

"Um... what limit?"

A weak question came from the side, and An Yi and Xia Qing turned their heads at the same time.

The downpour came and went quickly. Evening self-study was about to begin, and many students had gradually returned to the classroom, creating a chaotic scene. The rain showed no signs of abating before the bell rang. An Yi's deskmate and good friend, Wang Xinze, had also returned and was standing to the side with a clear look of confusion on his face.

"Perfect timing, Wang Xinze, how about we switch seats during evening self-study?"

After asking, Xia Qing looked at An Yi, "Is everything alright? Do you have any other plans for evening self-study?"

"I will absolutely obey orders!" An Yi immediately pledged his loyalty.

Then the two of them looked at Wang Xinze together.

"Oh, no problem."

Completely unaware of what had happened, Wang Xinze had no choice but to agree.

After Xia Qing returned to her seat to pack her things, he looked at An Yi with a bewildered expression: "What's going on?"

If the man and woman in this incident were different people, he wouldn't be so confused. Even a fool could figure out that it was a pair of adulterers trying to sit next to each other during evening self-study... But, An Yi and his older brother?

impossible!

Everyone knows who the eldest brother is!

An Yi sighed softly, "You know I got arrested at noon, right?"

"I know."

Wang Xinze laughed, somewhat gloatingly, "You're really unlucky."

"Having gone through this ordeal, I am prepared to turn over a new leaf and start anew."

When chatting with your best buddies, you have to brag and make jokes, An Yi said with a resolute tone.

"From now on, I will apply my talents to my studies!"

"Will you apply the talent that your league has invested so much in to your studies?"

Wang Xinze teased him, "That certainly has a promising future."

"You don't understand. Everyone's talents are focused in different directions. I'm a potential academic genius. I didn't show it before because I felt that we were all the same age and I didn't want to undermine others."

An Yi sighed earnestly, "Now my elder brother has discovered this piece of gold buried in the ground, and out of great compassion, he has unearthed me..."

"Heh." The good brother chuckled coldly, raised his middle finger to adjust his glasses, clearly not taking An Yi's words seriously.

In his view, this was just another indirect moment of arrogance from his brother, and he would soon return to his usual state of idleness and complacency.

As for why he understands so well? It's because people who get along well with each other tend to have some things in common, and they often go through similar psychological cycles:

Games are so fun, novels are so good → Why are my grades so bad? I can't keep going like this, I need to work hard and start studying again → Studying is so tiring, I've been working hard for a while now, I feel like I can take a break → Games are so fun, novels are so good…

Just fool yourself, don't even think about fooling your brothers!

An Yi completely disregarded the distrust his good friend showed; if the roles were reversed, he would have reacted the same way.

We've known each other for so long, we all know each other by heart!

"Big brother, where should I begin?"

After Xia Qing brought over paper and pen, An Yi couldn't wait to ask.

"Of course, we'll continue practicing functions, but we need to increase the intensity."

Xia Qing picked up a pen and scribbled and revised on the draft paper. "When it comes to learning, if talent is your mechanism, then your knowledge reserves are the numerical value."

There are various ways to improve numerical values, just like leveling up in a game. You can do daily and weekly quests, run dungeons and fight bosses... but the most efficient way to improve them is through the game mechanics.

However, not everyone has this mechanism, so this method is not universally applicable.

In short, while testing the limits of your "limited-time unstable mechanism," you can also improve permanent stats—a win-win situation!

"So that's how it is..."

An Yi nodded repeatedly as his elder brother used the analogy directly in the field of gaming, which he was most familiar with, making it easy to understand.

But then he finally saw what changes his older brother had made to the draft. After a moment of stunned silence, his confidence that he was "invincible for the next six hours" vanished, replaced by a look of utter confusion and disbelief.

"Big brother."

He instinctively wanted to swallow, but found his throat was getting dry. "Isn't this a bit too..."

"Too easy?"

Xia Qing paused, re-examined the "question" she had given An Yi, and then nodded in approval with considerable satisfaction at her younger brother's desire to challenge himself and become stronger.

"Indeed, then I'll make it a bit more difficult for you!"

The words "It's a bit too difficult" that An Yi hadn't even had a chance to utter were stuck in her throat and could only be swallowed back down.

The key to this kind of thing is to look at the roles and identities. Right now, the eldest brother is providing help completely free of charge. An Yi, as the person being helped, hasn't even thought about how to repay him in the future. Now that things have been said to this extent, how can he show any fear of difficulties?

Even if there are knives and fire ahead, we must try to get through them.

Of course, the main reason was that he himself was also a little expectant, wanting to see just how far he could go...

Thus, An Yi could only watch helplessly as Xia Qing continued to modify the "question" and increase its difficulty.

If the drawings Xia Qing created in the first edition were considered kindergarten doodles based on the "difficulty level of drawing with functions," then in the second edition, they had been upgraded to the level of perfect scores in art students' professional exams.

As for the final version after An Yi "voluntarily offered to take on more responsibility", it can be placed in the Danon Hall of the Louvre and hung together with the Mona Lisa for the world to see!

"Is this something an ordinary person could draw using functions?" An Yi couldn't help but mutter to himself.

"You don't really think you can be considered an ordinary person, do you?" Xia Qing asked in a low voice.

"Of course you can count, but you're still far from being as good as me, Big Brother!" An Yi offered a slightly awkward compliment, displaying a rather obsequious manner of a younger brother.

"Does being similar to me mean you have to be extraordinary?"

Xia Qing thought for a moment and said calmly, "That standard is too high."

An Yi opened her mouth, but ultimately couldn't utter a word.

It's like praising a car for being able to catch up with a high-speed train at full speed, but the car owner says you're being too slow, that it can actually run faster than an airplane... The scariest part of the whole thing is that after hearing it, you actually find what she said to be very credible.

As the self-proclaimed younger brother, An Yi had no idea where his older brother's limits lay, and it seemed that no one else besides his older brother knew either. He had only heard a legend about his older brother—

Not long after entering high school, the math teacher was quite curious about the extent of his older brother's math skills. Also, probably wanting to "put him on his toes," the teacher gave him a set of questions for a private test and promised that "as long as he passed, he could do whatever he wanted during class." After receiving the questions, the older brother spent three hours conquering them all.

According to rumors, the difficulty level of that question was at the IMO (International Mathematical Olympiad) level.

Of course, a legend is a legend, not a fact, precisely because it may be exaggerated... At least Xia Qing had no intention of participating in the National High School Mathematics League to prove it, whether in her first or second year of high school.

However, being consistently ranked first in the grade and achieving a perfect score in math was enough to fill An Yi with awe.

"Alright, let's not waste any more time, let's get started!"

Xia Qing urged, her excitement at the mention of the matter bordering on excitement, like someone about to witness firsthand how monkeys evolved into humans…

Why do I always seem to be associated with monkeys?

An Yi could only bury herself in "painting".

At the beginning of the project, his function drawing was not ideal.

Xia Qing didn't find this surprising. As the saying goes, even a skilled cook can't cook without rice; no matter how powerful one's calculation ability is, it can't compensate for An Yi's failure to memorize the theorems and formulas. It's like the world's most powerful engine is roaring, but the driveshaft is gone... the car can only stand still.

But as time went by, she gradually raised her eyebrows, and a new wave of doubt flickered in her eyes.

These doubts gradually accumulated, growing until quantitative change led to qualitative change, and an idea uncontrollably emerged in the mind.

"Is this kid trying to trick me?"