novelraw Chapter 437
Chapter 437
Shi Ning put aside his eyes and fell on the book. Then he leaned slowly, landed his hand and looked at the math problems in the book seriously.
Since last night, I knew that Lu Shian, Xi Qinghuan and Qi Bo had begun to teach themselves advanced mathematics. Now I see the advanced mathematics question bank in his hand, Shi Ning has been very calm.
What director Xu and Yang Qiwei said is no longer within the scope of their attention. Shi Ning even took out a manuscript and pen from his schoolbag and said while writing: "For the finite covering theorem, we should pay attention to two points. One is that the covered interval must be a closed interval, and the other is that the interval used to cover the closed interval must be an open interval. The closed interval or semi open and semi closed interval is not tenable. Generally, there is no difference between these two points. Let me see..."
While talking, I started to write on the draft book and didn't listen to what director Xu and Yang Qiwei were saying.
Yang Qiwei has been chatting with director Xu very seriously for a while. They didn't pay attention to what they were doing until Yang Qiwei looked at them. He stopped talking and smiled at director Xu with a serious expression: "director Xu, they have given you the best answer to the questions you are worried about."
Director Xu looked along the line of sight and saw that the two students they had been discussing were doing problems very seriously... He almost quarreled with his parents. They were still in the mood to do problems?
After listening carefully, director Xu was so surprised that his fingers shook.
"According to dadkin's theorem, there is a unique real number η， send η It's the dividing point between a and B, so... "Shi Ning wrote and whispered, focusing on what happened around him and shielding it all,"... Set the set composed of these limited open intervals as H1... "
"I'm here to solve the mistake..." Lu Zhian, with a pen in his hand, slightly touched the draft paper with the tip of his pen, leaving a few tiny black spots. "The minimum value is wrong, and there's no way to calculate it later."
"Qinghuan is wrong here..." therefore, both of them are wrong and insist on themselves, but there is no result.
Shi Ning nodded and carefully analyzed, "it's very correct. The easier the finite coverage theorem is, the easier it is to make mistakes. The mistakes of you and Xi Qinghuan are the most common mistakes."
The pen in his hand kept moving on the draft paper, and finally turned the page to continue writing. At the moment when the paper turned over, the light shone through the paper, and director Xu saw that the side of the paper was full.
Finite covering theorem, Daikin Theorem... They are all college advanced numbers. Shi Ning and Lu Zhian have begun to discuss advanced numbers!
"Director Xu, we have been staring at them for three minutes. They have no influence and haven't noticed us at all. Do you think it's a bad thing to fall in love with them?"
"No, puppy love is just a diversion for them. It even promotes them to study and compete together. I know the two children very well. They will strictly restrict themselves, help each other, solve learning problems together, and supervise each other."
Yang Qiwei was defeated by both of them. He racked his brains to convince the teaching director who existed like the "Queen Mother". He never thought that they still wanted to do problems together.
It is also a mistake, which has become the most evidence to convince director Xu.
What else can director Xu say? A God in high school and a God in junior high school. They talk about puppy love and discuss advanced mathematics. What else can he say?