The next day, Ye Fan didn't go to class, and Teng Zang didn't go either.

Ye Fan asked Teng Zang to cultivate wholeheartedly, and he pondered the problem on Ning Die's sword tracks, but it was still the same as before, no matter how he pondered, he couldn't find an exit.

At noon, when Ye Fan and Tengzang went to the cafeteria to eat, Wu Tian found him and said that he would make up for him later, but Ye Fan directly refused.

After Ning Die learned about this, she was so angry that she gritted her teeth, she asked Wu Tian to make up for Ye Fan's lessons, hoping that Ye Fan would get some points in the practical assessment, and if she could get it, then there was hope to get rid of the last place, but Ye Fan directly refused......

In fact, Ye Fan didn't think about it at all now, or rather, he knew that even if he made up the class, he would still be the last.

……

……

In the blink of an eye, on the 27th, there are only 4 days left until the end of the month.

Ye Fan still didn't figure it out, which made him a little anxious, and the more anxious he was, the more dazed he became......

On the 28th, there are three days left until the end of the month.

Although there are still three days left, the 29th is a theory exam, the 30th is a practical exam, and the 31st is a break.

So, in fact, there are only two days left on the 28th and 31st.

On this day, the weather changed, and dark clouds pressed low in the sky, indicating that a storm was coming.

Ye Fan, who had been unable to figure it out for a long time, was already haggard, and now every time he pondered, he would feel that his consciousness was in a trance, as if he was about to faint.

At this time, he looked at the void in a daze, thinking in his mind: It's going to be a month soon, can't you really figure it out? Do you want to give up?

Ye Fan is unwilling, really unwilling!

Again, he picked up the branch and stroked it in the void one by one, and when he reached the fifth stroke, his mind was dizzy, and the whole person fell to the ground.

Tengzang, who was cultivating next to him, was awakened and immediately rushed to him, trying to help him up.

Ye Fan shook his head and said weakly:

"No, I'll just lie here for a while, just lie down for a while. ”

Tengzang looked at his haggard and emaciated appearance, and his fists tightened and tightened in discomfort.

Ye Fan was lying on the ground in the courtyard, staring straight at the sky in a daze.

Even though I knew that I couldn't bother thinking about it anymore, I still couldn't stop thinking about it in my mind......

No one can understand his persistence, maybe Tengzang can understand, but he can never fully understand it.

And just when Ye Fan was lying on the ground, looking at the sky and thinking, he suddenly had an illusion.

He felt that the clouds in the sky were like swords under Ning Die's hands, sometimes fast, sometimes slow, sometimes rich, sometimes thin, sometimes tumbling, sometimes stationary......

For a moment, his divine consciousness fell into this trance-like illusion, and his eyes couldn't help but move with the changing dark clouds, and the more he looked, the more he became fascinated.

After watching it like this for more than ten minutes, raindrops fell from the sky.

Tengzang wanted to help Ye Fan into the house, but Ye Fan pushed his hand away and said in a low voice:

"You go in, I'll lie down a little longer, I seem to be ...... Got something. ”

Tengzang didn't understand, but he would listen to what Ye Fan said, so he squatted beside Ye Fan and accompanied Ye Fan.

The rain became heavier and heavier, and the raindrops poured down like beans, crackling as they hit the eaves and the ground.

Ye Fan remained motionless, opened his eyes vigorously, looked at the dark clouds in the sky against the dense raindrops, looked at it, he closed his eyes, and the picture of the dark clouds running and rolling in his mind was still in his mind.

After a few minutes, he opened his eyes again, stared at the dark clouds in the sky again, and after a few minutes, closed his eyes again.

After doing this more than ten times, when he opened his eyes again and looked at the dark clouds in the sky, he suddenly turned on a happy face and blurted out:

"I see, haha, I see!"

Then, he yelled: "Quick, Tengzang, help me to Mr. Lin, no, you carry me." ”

Tengzang hurriedly helped him up, carried him on his back, and ran towards Ning Die's residence in the torrential rain.

When Ning Die saw the two of them, she couldn't help but be stunned, undoubtedly unable to understand what the two were doing in the heavy rain.

Ye Fan slipped down from Teng Zang's body, and said with an extremely excited expression:

"Teacher Ning, I know where the problem with your sword marks is, I figured it out. ”

“……”

Ning Die continued to be stunned!

After coming back to her senses, she subconsciously asked, "You're not kidding, are you?"

"Of course it's not a joke, you come out, I'll explain it to you. ”

Under the emotion, Ye Fan didn't care about anything else at all, and immediately grabbed Ning Die's wrist and almost dragged him outside the house.

Moreover, it was dragged into the rain, pointing to the sky and saying, "Look at the dark clouds, why does it move?"

“……”

Ning Die was stunned for a while, and subconsciously raised her head, but the raindrops hit her so much that she couldn't open her eyes, how could she understand what Ye Fan said.

Ye Fan himself said the answer: "The reason why the clouds move is because the air is moving, you look at the clouds in the sky, no matter which clouds you look at, whether they are tumbling or swimming in a straight line, their trajectories are extremely natural." ”

Ye Fan wiped a handful of rain from his face and continued:

"The relationship between the flow of air and the clouds is actually the relationship between the vitality and the sword energy, the flow of the air pushes the clouds, the movement of the vitality pushes the sword, isn't that so?"

"Yes. ”

"When the speed of air flow increases, the speed of cloud flow will increase correspondingly, and when the vitality of the urging force increases, the speed at which the sword travels will increase, right?"

"Yes. ”

"Let's talk about the problem of your sword trace, when you reach the penultimate stroke of 17 words, the sword momentum is powerless, how can you break the next stroke, do you know why this phenomenon occurs?

It's because, from the very beginning, you are using the vitality to control the speed of the sword, I am talking about this "control", it is strong control, you control the speed of the sword through the strong shape, to simulate the sword traces in the sword tablet, if it fits, you can successfully break through to the next stroke, you through this simulation, to the 17th word.

But the problem is that no matter how realistic your simulation is, it can't be 100% accurate, which means that there will be subtle differences in each simulation you make.

At first, this difference is small and will not affect the continuation of the downward trend, and when this difference accumulates to a certain extent, a qualitative change will definitely occur.

When the quality changes, the sword traces you use are already two different from the sword monument sword traces, your sword traces are only similar to the shape, and there is a shell left, and there is no soul needed for the sword monument and sword traces. So, no matter how you simulate it, it's hard to match the sword stele's sword tracks, that's it. ”

Ning Die was stunned, she did simulate the sword traces in the sword tablet by controlling the speed of the sword, but was this wrong?

Isn't that true of everyone else!?

She swallowed a handful of saliva and said this: "But I'm not the only one simulating sword traces, other students are like this, even for hundreds of years, the academy calls this course copying sword traces, that is, simulating sword traces, isn't this right?

"It's very simple, students who can complete 21 words, when they copy, there are subtle differences in each stroke, and they have not accumulated to produce qualitative changes, but no qualitative changes have occurred, so they can naturally continue to copy.

And you, in the previous 17 words, the subtle differences produced by the simulation are greater than them, when you go to the 17th word, there is a qualitative change, you want to copy again, it is impossible, even if you can force a breakthrough to the next stroke, you can't go far, if my judgment is correct, according to your copy, even if it takes a lifetime, you can't go through 21 words. ”

“……”

Ning Die froze in place!