The Last Alchemist

Veronica's arrival did not surprise Rosen.

Of course, the most important thing is that he has confirmed that the other party is harmless to him. In this case, he will naturally not resent the presence of such an eye-catching presence in his bedroom.

He turned around and continued wiping his cheeks. After wiping it clean, he put down the cotton towel and rinsed his mouth with the salt water next to him. Then he turned and walked towards the clothes rack next to the bedroom.

After taking off his fur vest and coat and hanging them on the shelf, he walked back to the table and touched the big spiral nozzle with one hand intentionally or unintentionally. The big nozzle turned slightly, and the barrel of the gun was facing it. With Veronica.

Although Veronica is currently acting harmless, she must be on guard against others.

Fortunately, Veronica didn't know the power of big trolls. She was focused entirely on penicillin and didn't care about Rosen's little actions.

After sitting down, Rosen smiled and said: "Your prediction is absolutely right. I also expected this ending."

‘Click~’

Veronica put the medicine back on the table and stared at Rosen with a pair of bright wine-red eyes: "When you taught that woman how to use a glass syringe just now, I happened to hear it clearly outside the window. What did you say about rosacea? The treatment is indeed unheard of, but surprisingly effective. What I’m curious about now is, how are you going to deal with the risk of going north?”

Rosen shrugged: "I don't know yet. Let's see what happens."

After saying that, he asked again: "You definitely didn't come to my place in the middle of the night to marvel at my potion. Tell me, what do you want from me?"

Veronica smiled slightly: "You are the smartest human being I have ever met. Talking to smart people like you always saves a lot of time."

"Thanks for the compliment."

Veronica took out a few rolls of parchment from the side pockets of her leather armor and unfolded them in front of Rosen: "A new question. As long as you answer it for me, I will tell you a very important news."

Rosen took the parchment and looked at it, and found a circle drawn on it, with a sentence written next to it: 'How to find the precise ratio of the circumference and diameter of a circle? ’

‘Isn’t this just calculating π? ’ Rosen thought to himself.

Regarding the calculation of π, Rosen knew many methods, including the ancient art of cutting a circle, and several formulas for calculating the value of π. However, you know what you know, but in specific application fields, π with an accuracy of 10 decimal places is completely sufficient. As a graduate student in materials physics, he would not be too idle to use a computer to calculate π to hundreds of billions of digits.

Therefore, Rosen could no longer remember the specific calculation formula. What he could really recall was the ancient art of cutting a circle.

Thinking of this, he glanced at Veronica: "Isn't the ratio just 3?"

Veronica shook her head repeatedly: "No, no, no, I measured it carefully with a rope. It's definitely not 3. It's a little bigger than 3, but much smaller than 4. But I can't calculate the specific number."

Rosen thought for a moment, picked up the quill, dipped it in ink, but did not write down: "I want to know the news first, and at the same time, I also want a bottle of gryphon acid."

Veronica glared at Rosen: "Why do you always bargain at this time? Do you know that your threatening behavior is very annoying!"

Rosen was unmoved: "If you agree, there will be an answer. If you don't agree, there will be no answer. It's your choice."

"Hu~hu~"

Veronica was furious, but she couldn't have an attack. She touched her chest repeatedly and exhaled. After a while, she managed to calm down: "Little thing, good luck to you, I agree!"

If she hadn't agreed to her friend's bet, and she really didn't want to lose to that guy, she would never have surrendered to a mortal so easily!

‘If I find a chance, I will definitely make you suffer a lot!’ She was furious in her heart.

Of course, Rosen didn't know what Veronica was thinking. Seeing how angry the other party was, he wasn't worried about the other party breaking the contract. Otherwise, she could have agreed first and then cheated later. There was no need to get so angry, right? .

He drew a rough circle on the parchment paper, then drew an inscribed regular quadrilateral inside the circle, and an circumscribed regular quadrilateral outside the circle. In this way, the diagonal of the inscribed square is the diameter of the circle, and the length of the side of the circumscribed square is the diameter of the circle.

After finishing the drawing, Rosen tapped the parchment with his quill and said, "I don't know the exact ratio, but I do know that the length of the circumference must be between the lengths of the two square sides, right?"

"Yes." Veronica nodded repeatedly, patting her head while nodding, feeling regretful and unwilling at the same time: "Why didn't I think of such a simple method? Damn it!" ’

After watching for a while, something suddenly moved in her mind and she found a flaw: "Wait a minute, what I want is a precise ratio, not a rough range. Moreover, after a little calculation, I know that the ratio is between 2.8 and 4. This range is really Too big.”

Rosen smiled slightly, drew another circle, and then drew a regular octagon inscribed and circumscribed: "Want to be precise? Yes, you can increase the number of sides of the polygon. The more the number, the smaller the range. , won’t it be accurate when it’s small enough?”

"Uh~~ It seems like that." Veronica nodded subconsciously, but for some reason, she always felt that something was wrong.

After thinking carefully for a while, her eyes lit up and she said: "No, no, our deal is that you give me the precise ratio, and then I can fulfill the agreement. But now, you only give me the algorithm, but no precise value. This It’s not a complete fulfillment of the contract, so the best I can do is bring you the news. As for the gryphon acid, there’s no need to discuss it unless you give me the exact value!”

After saying that, Veronica looked smug. She had always been crushed by Rosen's intelligence, and today she was able to beat the odds.

Unexpectedly, as soon as she finished speaking, Rosen started writing on the paper. She looked closely and found that it was a series of numbers. She subconsciously read out: "3.1415926535897."

When this long series of numbers came out, the smile on Veronica's face slowly solidified.

After Rosen finished writing, he looked up at Veronica: "Actually, this ratio is the same as a natural constant. It is a transcendental number and an irrational number. Therefore, it cannot be finished, but I can give you one. The ratio is accurate to 13 digits. If you don’t believe it, you can calculate it carefully using the method I just gave you.”

His eyes were light and full of condescending confidence, as if he were a god who held the truth, standing in the clouds and looking indifferently at the mortals groping in the darkness.

Veronica felt sweat on her forehead, and she forced herself to say: "How do you know it can't be finished?"

Rosen inserted the quill pen back into the ink bottle and said calmly: "The number of sides of a polygon can be infinite, but no matter how many there are, it can only be close to the circle, but cannot completely coincide with the circle. Therefore, the more sides there are, The more, the more precise the ratio, but since the number of sides is infinite, there will always be more precise ratios, so the ratio must be infinite.”

π is a transcendental number, which has been strictly proven on earth. If Rosen writes out the detailed proof, it will be more convincing. Of course, for Veronica, what he said was enough.

Seeing that Veronica remained silent, Rosen added: "This is an obvious fact."

"I know it's true!" Veronica's face was as dark as water.

She was completely convinced, but she was both happy and annoyed in her heart.

I'm happy that I won a bet from my friend. The annoying thing is that since she met Rosen, she has been despised by him one after another, but she is completely unable to fight back and can only endure it. This feeling is really annoying.

However, although she is very reluctant, abiding by the contract is her bottom line. Now that Rosen had answered the question, even if she was reluctant, she could only go get him a bottle of gryphon acid.

But griffin acid is not easy to get. To get that thing, you must get the acid sac of the griffin, and it must be an intact acid sac. You must kill the gryphon before it spits out the acid. die!

Veronica almost went crazy: 'Ah~~I would actually hunt a griffon for a mortal! Damn it! Damn it! Damn it! Ah~~~~I have really fallen! ’

Rosen, who was on the side, saw that her face was gloomy and uncertain, so he didn't say anything to continue stimulating her. He waited until Veronica's mood recovered on the surface before he said, "You just said you would bring me a message?"