Ye Wan originally thought that Yang Ting was just curious, just flip through it, but she didn't expect to be watching it there all the time, and she was still pondering and thinking at times, as if she was really learning.

Seeing him like this, I can't help but want to laugh a little, it is difficult to get started, and you must have a teacher to guide you in front.

However, Yang Ting actually looked at it by himself, and he still watched it with relish, could he really understand it?

And it's been so long at first glance.

This can surprise Ye Wan a lot.

I couldn't help but ask, "You understood it all just now." ”

"I understand a small part. Yang Ting said modestly, after all, this is just a book, and what it is like to really study will only be known when it comes to the exam.

"Do you really understand? What do you not understand? You can ask me. Ye Wan said seriously.

If Yang Ting was willing to learn, she wouldn't mind teaching him.

"No need, you've worked so hard, why are you embarrassed to bother you again, let's get busy with you first, I'm just playing around. Yang Ting said.

"It's okay, I've been watching it for so long, and I'm just tired, I can answer your questions and relax. Ye Wan said.

Hearing Ye Wan's words, Yang Ting finally took out the book and sent her the doubts just now.

"I don't understand this part well. ”

"What? Statistics!" Ye Wan was dumbfounded when he looked at the book, he did it on purpose, this statistics is an optional topic, and it is difficult to learn.

To tell the truth, I am not good at statistics, this thing is not a high number, not a special profession, and I rarely learn this.

Although it is very useful, it is too difficult to learn, so the teachers do not take the test at school, and when it comes to teaching, there is naturally not much to teach.

However, these basic things can still be understood.

Subsequently, he told Yang Ting about it.

"When the correlation coefficient is higher than 10 percent, there will be a positive correlation. ......" Ye Wan explained to Yang Ting.

"Oh, I see. Yang Ting nodded and said. He understands it now and understands it quickly.

After that, I read all the knowledge in the book from beginning to end.

By the time everything was finished, it was already two hours later.

"Are you done?" asked Ye Wan in a daze.

"Well, these things are pretty simple. ”

"You're incredible, aren't you? Do you dare to let me test you?" Ye Wan asked.

"Okay, you can do it, I just want to test what I've learned. Yang Ting said to Ye Wan.

"Then you're welcome. Then he casually said, "You write the derivative formula first." ”

The derivation formula of the derivative is the most basic knowledge, and these basic formulas are also the key steps in solving the problem.

However, after raising this question, Ye Wan regretted it a little.

Although those knowledge were very basic, Yang Ting had only watched them for two hours after all, and from the first year of high school to the third year of high school, how could he possibly remember these formulas.

"Why don't you change the subject?"

"No, just use this. ”

Then, I picked up the paper and pen on the table.

Soon all those derivative formulas were written.

Wrote a full half page.

Ye Wan, who was looking at the side, widened her eyes.

"Your memory is amazing, right, you actually memorized all these formulas in such a short period of time? You are so amazing, it's a pity to drop out of school at that time. ”

"Why don't you come up with another topic?" Yang Ting said.

"You're going to give it a try? Ye Wan saw that Yang Ting still wanted to give it a try, so she asked another question.

It's a question about the geometry of space.

The questions are also relatively simple.

However, for this question, normal students have to think for a minute, but what surprised her was that Yang Ting immediately wrote after that question, and there was no time to think at all.

"Think twice before you do it, it's easy for you to lose money. Ye Wan reminded beside her.

Yang Ting ignored Ye Wan's reminder and continued to answer the question.

The speed of writing is also very fast, and the knowledge of spatial geometry is also used.

In just five minutes, I did all the questions, which is definitely the speed of those top students!

Read it and you'll know the answer right away!

However, how could this speed appear on Yang Ting's body?

"You must have learned this before, haven't you?" asked Ye Wan.

Yang Ting smiled.

said to Ye Wan: "Why don't you give me another question?"

"What? You're going to give it a try? Okay, I'll do it for you, but it's not so easy to do this time, you have to be prepared. ”

Seeing that Yang Ting still didn't stop, Ye Wan was also aroused to be competitive.

Then, he said to him, "Is this still the problem, can you make it with vectors?"

Seeing that Yang Ting didn't speak, Ye Wan couldn't help asking, "How is it?" Do you know the difficulty of this question? Although it is also very simple, the college entrance examination is not such a simple thing, otherwise, wouldn't everyone be a college student. ”

Yang Ting didn't speak, but smiled indifferently again, I don't know why, when she saw Yang Ting laughing, Ye Wan's heart chuckled, because she was infected by his smile!

This kind of smile makes people look like they don't have any pressure at all, as if you don't need to worry about anything after handing things over to him.

"Then I'll try again. Yang Ting said.

Then, I picked up the pen on the table and began to answer without any deduction and calculation process!

This situation made Ye Wan feel shocked, you know, even if she did it, it was impossible to do it so quickly, and the intermediate calculation process also required several steps.

However, he wrote it all out without any obstacles, as if the answer was in his head, and he copied it directly.

This can completely shock Ye Wan, she has seen people with good memory, and he has also seen people with good understanding, but her memory and understanding are so good, this is too rebellious!

"You see, right?" Yang Ting picked up the paper and handed it to Ye Wan's hand.

Ye Wan hurriedly took it, and the more she looked at it, the more shocked she became!

These, it turned out to be not wrong at all, and it was completely written down in the format of the textbook, the simplified steps were not cumbersome at all, and the detailed steps were not simplified at all, and then, the answers were compared, and they were completely overlapped, which ...... How is this possible?

Ye Wan was completely shocked.

If you don't see it with your own eyes, you don't believe it's true at all

No! No, there must be a problem!

He must have been exposed to these things before, otherwise how could they be so powerful!

Then, he pulled out another sheet from the stack of test papers.

"This is a college entrance examination question, known as the most difficult question in the past five years, do you dare to give it a try?" Ye Wan asked.