Martial Arts Crossover: That night, Huang Rong descended from the sky.

Chapter 33: Calculus Martial Arts? Inviting the Moon, I'm afraid I'm a fool.

The inn was too small to be suitable for practicing martial arts, so Li Ping rented a courtyard.

In the courtyard.

Li Ping's sword flashed like fire, and he thrust out countless swords in an instant, while Huang Rong moved freely amidst his sword light.

Although Li Ping didn't use time acceleration, he didn't hold back.

Then, as the sword light faded, Li Ping sighed, "Rong'er is truly remarkable. You learned Wei Yixiao's lightness skill just by watching him for a moment."

Huang Rong was originally a martial arts genius who could learn any martial art after just one glance.

However, just like in "The Legend of the Condor Heroes", Poison Hand Qianluo's evaluation of Thief Chi Zunxin was that his talent was too high and too easy to obtain, so he did not have enough hard work. Therefore, he never reached the pinnacle of martial arts in his entire life.

Even so, Li Ping's eyes were red with envy.

Huang Rong exclaimed, "No wonder you said Wei Yixiao's lightness skill might be the best in the world."

"If it's about maneuvering and dodging in a small area, it might not be as good as the Evil-Repelling Sword Technique, but if we're just talking about speed, wow... it's really amazing."

"Let me explain to you in detail how to incorporate this into your movement techniques..."

Huang Rong originally came from a family with a strong martial arts background, and her basic theoretical foundation in martial arts was very solid. After activating her "wisdom" last time, all her martial arts difficulties were easily resolved.

She even innovated the martial arts of Peach Blossom Island and made some improvements to the Evil-Repelling Sword Technique.

Her strength has improved by leaps and bounds during this period, but she hasn't had the opportunity to use it, or she's encountered monsters like Yaoyue, so she hasn't been able to demonstrate it.

So although she didn't practice Wei Yixiao's martial arts, she could immediately grasp the secrets of Wei Yixiao's lightness skill, and then she broke it down and explained it to Li Ping and Su Ying.

If it were anyone else, they would never be able to exchange martial arts secrets so selflessly, but the relationship between Li Ping and the other two is quite peculiar.

The three are friends and teachers to each other, sharing everything without reservation.

After finishing her explanation, Huang Rong said, "That's about it. Master Li, you've been traveling a lot lately and haven't taught us in a long time."

Su Ying nodded repeatedly, like a chick pecking at rice: "Yes, it's been so long since I've studied, I feel like bugs are crawling all over me..."

Looking at the two top students, Li Ping couldn't help but feel bitter: "I've taught you everything I know about physics. The rest is too advanced for me to understand at all."

"Sigh, I didn't study hard when I was in school, and I've forgotten most of what I learned."

The two girls blinked. "Teacher? Didn't you say your knowledge was inherited from your family?"

However, since they were all friends, they didn't delve into Li Ping's secrets, nor did they ask him to.

Huang Rong said, "But you also have a deep understanding of arithmetic. How about we have a lesson on arithmetic today?"

Su Ying said, "What else do you know, like biology and chemistry...?"

Li Ping said, "I've almost forgotten all my math, and in chemistry I only remember one concept: equivalent exchange, and one thing: H2O. But I can still explain some of the basics."

"As for living things, haha..."

Huang Rong's eyes were almost red with anger, and she punched him in exasperation: "So much advanced knowledge, and you didn't even bother to learn it? You're utterly wasting it!"

Li Ping rolled his eyes: "Your family's martial arts are so powerful, yet you haven't really put in the effort to learn them, have you?"

This was truly a difficult thing to bear. The two looked at each other and then sighed in unison.

Li Ping said, "Then let me explain calculus to you. I should mention beforehand that I didn't really understand it back then either..."

"Liu Hui's method of exhaustion during the Wei and Jin Dynasties and Zu Geng's principle during the Northern and Southern Dynasties can both be considered pioneers in this field."

"Calculus is divided into two parts: differentiation and integration. The basic idea is to decompose complex problems into infinitesimal elements and obtain the overall result by summing or using limits..."

Li Ping stammered as he poured out the little ink he had left in his belly.

The two girls listened intently, asking questions from time to time, while Li Ping was sweating profusely.

Suddenly, Huang Rong was inexplicably stunned.

Li Ping and the other man were taken aback. Li Ping whispered, "Has her 'wisdom' awakened again?"

Su Ying shook her head and said, "I don't know, I'm so envious!"

I wonder what blessings the river of time will bestow upon me, and why I haven't awakened yet?

Huang Rong shook her head, her face full of excitement: "No, no, this knowledge is really interesting, it can be completely applied to martial arts..."

Su Ying was slightly taken aback, then her face lit up with joy: "That's right, Rong'er is so clever!"

Li Ping: "..."

He originally told Huang Rong these things just to exchange martial arts techniques with her. Later, he only told her because she was interested. He didn't think it would bring any change to the world!

Developing technology takes time. Now that the river of time has collapsed, this world may cease to exist at any moment. Li Ping has no such thought at all.

Unexpectedly, the flowers planted with care did not bloom, while the willows planted unintentionally sprouted. Previously, Huang Rong used lightning to help him open up his Ren and Du meridians. Now, Huang Rong and the other person believe that calculus can be applied to martial arts.

How do I apply this?

You guys are making me feel like an idiot!

……

"Palace Master, has anyone ever told you that you're like a voyeur? Spying on others all the time."

Not far away in the restaurant, Xiaoyuer's Yueyue sat there, watching the three people in the courtyard. The three people's words, even from a distance of dozens of feet, reached Yueyue's ears without missing a single one.

Yaoyue pretended not to hear Xiaoyuer's teasing.

She wasn't deliberately spying on Li Ping and the other two; it was just that they all had the same destination. Li Ping came here to find Huang Yaoshi, while she came here to find Hua Wuque and Lianxing.

But now that she had seen Li Ping and the other two, she wanted to hear what they were saying and see if this despicable man, Li Ping, had kept his promise.

Then I overheard the three of them discussing calculus, and countless questions popped into my head.

What? What? What? What is all this?

Yaoyue felt like a fool.

The last time she had this feeling was when Li Ping explained to her what electron charge was.

This feeling was especially strong this time!

Everyone was hearing this for the first time, so why did Su Ying and Huang Rong understand it immediately and even apply it to their martial arts, while I couldn't understand anything?

Her arrogant and innate sense of superiority was shattered for the first time, and she felt that her intelligence had been crushed by the two girls!

Am I... a fool?

For the first time, she began to doubt herself!

Suddenly, Yaoyue's expression changed. Was there a master?

It seems they're looking for Li Ping?

This kid gets so much trouble every day!

It would be best if he were dead...

No, if he dies, then what about Xiaoyuer and Wuque's past...?

For a moment, Yaoyue was in a dilemma again!

……

Li Ping was listening intently to Huang Rong and Su Ying's discussion and was gradually getting a grasp of it, even to the point of being able to join in their conversation, when suddenly there was a knock on the door.

Who would it be at this moment?

Could it be that Yue Buqun has replied?

Li Ping opened the door and saw a middle-aged man standing there. He had a fair complexion and no beard, wore red clothes, and had a strong scent of incense on him.

Li Ping frowned slightly. Is it fashionable for men in the Ming Dynasty to use incense?

The middle-aged man asked softly, "Excuse me, are you Li Ping, the successor of the Evil-Repelling Sword Technique?"

Li Ping's heart tightened, and he already gripped the hilt of his sword: "May I ask...?"

Before he could finish speaking, Li Ping's vision blurred, and a red cloud swept over him.

Li Ping was greatly surprised.

That's too fast! This guy is way too fast!

He finally understood how those people felt when faced with his Evil-Repelling Sword Technique!

Time accelerated, and the longsword transformed into a streak of light, pointing directly at the man's face.

The man lightly tapped his fingertip onto Li Ping's longsword.

Li Ping was caught off guard and felt as if his longsword had been struck by a heavy hammer. His internal energy surged, and he was unable to unleash any of his techniques.

He immediately retreated, his longsword guarding the entrance.

But the man didn't seize the opportunity to pursue her; he simply chuckled and said, "I observe that you've only been practicing the Evil-Repelling Sword Technique for a short time, yet you've already achieved such speed?"

"Incredible, absolutely incredible!"

"There are so many talented people in this world!"

Li Ping's heart skipped a beat. He already had a guess about this person's identity and asked, "Who are you?"

The man nodded slightly: "I am—Dongfang Bubai!"