"Mathematics is a tool, and if you want to use tools, you can't just learn tools." Shen Hui was not stage frightened at all, and when he saw Niu Kaihuai, he didn't erase the question written by Niu Kaihuai, and talked about it directly.

"Higher-order derivatives can be combined with gravity exploration. The gravity anomaly of the specified area can be obtained through the gravimeter instrument, and the key parameters such as the occurrence, shape, and spatial location of the underground geological body can be obtained through the gravity anomaly.

However, the obtained gravity anomalies are often superimposed anomalies of underground geological bodies, which will be disturbed by a variety of factors, which requires the use of higher derivatives to deal with the obtained gravity anomalies reasonably. ”

"The essence of the higher-order derivative is a filter, which can highlight the gravity anomalies of shallow and small geological bodies and suppress the influence of regional geological factors with deep burial depths. It is also possible to divide the gravity anomalies caused by several geological bodies that are not very different in depth and close to each other......"

Niu Kaihuai originally had the mentality of watching a good show, wanting to see how many brushes Shen Hui had, and he dared to be so crazy.

In his heart, Shen Hui is an ordinary genius, and it is normal for a genius to be a little arrogant, but which of so many classmates in the class is not a genius, and the arrogance that Shen Hui can use in other places does not mean that he can also be used in this class....... Damn, she seems to be really arrogant!

"Firstly, on the basis of the basic theory of gravity field, the calculation formula of gravity anomaly and partial derivatives of each order is derived......"

"Converting the Formula for Calculating Higher-Order Derivatives ......"

"It is possible to design both 2D and 3D models here......"

"Next, the vertical second derivative is calculated by two higher-order derivative methods, and it is demonstrated that the boundary of the model and the approximate projection position on the ground can be determined by using the intersection of two vertical second derivative curves of different radii......"

"That's where higher-order derivatives are in action."

Shen Hui finished teaching.

In two classes, Shen Hui did not pause during recess, and no classmates in the class moved or left.

I taught nearly two classes in a row.

No, to be precise, it was Shen Hui who gave two lectures by himself.

Shen Hui said these things not to teach anyone, but to prove that she is stronger than Niu Kaihuai, as long as she is strong enough, she does not need Niu Kaihuai's guidance, nor does she need to accept the restraints from the teacher.

Shen Hui was about to step off the podium after speaking, when suddenly someone in the audience asked, "Teacher Shen!" I have a question! It's not about math, it's about the FrOtran program. ”

Shen Hui felt a little strange when she was called a teacher for the first time, she didn't answer, and walked off the podium directly, "I'm not your teacher, and I don't want to answer your questions." ”

After speaking, Shen Hui walked to her place, where there was still a cow to laugh, Shen Hui said unceremoniously, "Please get out of the way, your students are asking you questions." ”

Niu Kaihuai didn't say anything this time, stood up directly, came to the podium and answered with a smile, "I know the FrOtran program, so let your teacher Niu tell you." ”

After Niu Kaihuai picked up the conversation, the class seemed to return to its original appearance.

Only Niu Kaihuai knows how painful he is now.

Wow, Shen Yichen, you kid really threw a bomb at me, this is no longer the genius level of a child, this horse is at the level of being a colleague with me!

Of course, Niu Kaihuai is a very competent teacher, no matter how much he scolds Shen Yichen in his heart, he behaves very naturally on the surface, and he can still lecture in his mouth.

Niu Kaihuai is also a genius, a multitasking genius!

And after Shen Hui sat down again, she looked at Shen Yue, she had a gut feeling that Shen Yue might say something to her at this time, but in fact no, Shen Yue was listening to Niu Kaihuai's lecture.

It's like listening to her talk about higher derivatives just now.

Shen Hui opened her mouth to talk to Shen Yue, but when the words came to her mouth, she swallowed them back, and only looked at the scenery outside the window.

In her school life, she doesn't need a teacher.

......

Niu Kaihuai didn't talk for long, and the bell rang after class.

In the past, even if the bell rang after class, as long as there were students asking him questions, he would stay to help the students answer, but this time, he ran fast, quite a bit of a deserted escape.

Of course, this deserted escape is in the eyes of the classmates, and in fact, Niu Kaihuai is going to report to other teachers.

[Special Class Teacher Group]: Made, a new student, Shen Hui, is really dying, and I don't know which national team came out, so everyone should pay attention to dodge!!

Shen Hui didn't know that she was about to become a terrifying figure for the teacher, and she was peeking at Shen Yue.

After class, Shen Yue still didn't talk to her, and no one else came to her or Shen Yue.

Shen Hui looked at the classmates in the class with her spare eyes, those people avoided her from afar, and they were like the two of them who greeted Shen Yue and herself enthusiastically when they first entered the classroom in the morning.

Shen Yue saw Shen Hui's doubts, and finally tilted his head, leaned on Shen Hui's shoulder, and said softly, "Huihui, you did something wrong." ”

Shen Hui frowned when he heard Shen Yue's first sentence after class, did not speak, and did not push Shen Yue away, just silent.

And Shen Yue didn't seem to want Shen Hui's answer, so he got up after leaning for a while.

She stood up and straightened her skirt and stood next to Shen Hui, "Teacher Niu is a good teacher, there were actually many times just now that he could teach you a lesson, but he didn't, the first thing he thought about was to preserve your self-esteem and your arrogance." As your sister, I'm going to thank him for giving you a chance and to apologize. ”