You don't deserve to be reborn (quick wear)

Chapter 55

It's just that honesty is temporary. Before Lin Xi could sit down peacefully for ten minutes, he felt uncomfortable everywhere and turned his head to talk to Lu Bingxing.

Then, maybe his blue hair did make the professor jealous, so he was named again.

"That classmate with blue hair, stop whispering to each other and come up and solve my example question."

Cao, this is scarier than being punished by standing still.

Lin Xi pretended not to hear these words, and instantly turned his head slowly and lay on the table.

"The classmate who spoke just now, please come up and solve this problem. I saw how happy you were when you just said it, and I thought you understood everything."

Lin Xi tugged on her boyfriend's sleeves and made an exaggerated mouth-opening expression, "Help..."

Lu Bingxing glanced at his stupid wife, and then stood up.

"This classmate, you can get up and answer. Anyway, you were the only one talking!" The professor was chubby, but he was very talkative.

After all, he also taught Lin Xi's class last semester, and he knew Lin Xi's level very well. The reason why he called him was just to deliberately embarrass him and remind him to pay attention to the class.

Three minutes later, Lu Bingxing put down the black pen.

"So be it!"

Professor Ye raised his eyebrows. He was very talented. How could such a good young man get mixed up with Lin Xi, a rich second-generation dude? He was wasting all his resources...

What he asked was a typical double integral problem, but this problem was not simple and there were many tricks.

The normal problem-solving method is to split the integral twice and then apply several formulas to calculate and solve the problem. The formulas needed are what they will learn in this class, including the next few classes.

The most important thing is that splitting it twice and then formulating it means that there is still an extremely huge amount of calculation waiting. Even if he wants to complete the calculation without going beyond the scope, it will take at least ten minutes.

However, this long-haired student took a different approach and used the method of converting rectangular coordinates to polar coordinates, and then used interval symmetry to simplify the double integral. In this way, when the original function was brought in, most of it was omitted. The fewer calculation steps, the higher the accuracy of the answer.

Lu Bingxing glanced at Professor Ye and praised,

"You asked this question yourself. It's very good. It covers a lot of subject content. You can use such a question to test students, which shows that you do have some discernment."

Professor Ye raised his hand and touched the top of his bright head, his eyes confused. Why, at this age, he felt that the more he lived, the more confused he became, and the more he lived, the more he went back.

This student actually talks like his seventy-year-old mentor?

He concentrated his attention and said, "The solution is very good. Did you preview it in advance? However, you still have to listen carefully to the next lecture. If you want to continue your postgraduate studies in the future, you can come to me."

Lu Bingxing glanced at him thoughtfully. After thinking about it, he didn't continue and turned back to his seat.

After all, in front of so many students, you have to give the professor some face.