Chapter 689 Everyone in the room was shocked The next day, Professor Chen from the Department of Mathematics came to attend the class.
The students sat more attentively than usual and took notes very carefully, fearing that they would make mistakes in front of the professor who was known for his strictness.
The old professor seemed to be working harder than usual, writing clearly on the blackboard and giving rigorous deductions. The classroom atmosphere was serious and tense.
Professor Chen sat in the back row of the classroom, his face serious, just listening as if it were a routine, occasionally making a note or two in his notebook, without showing much emotion.
For a scholar of his level, most of the undergraduate basic course content is well understood, and he attends lectures more to observe the teaching standards and the overall status of the students.
However, when the second half of the course involved some complex derivations that required the use of advanced mathematical tools to solve physics problems, he became more focused.
The old professor wrote a comprehensive problem on the blackboard that combined partial differential equations and boundary conditions. The difficulty was significantly increased, aiming to test students' comprehensive application ability.
The classroom suddenly became quiet, with only the rustling sound of pens scratching across paper and the occasional confused gasp.
Many students frowned and their calculations came to a standstill.
The old professor looked around the classroom and was about to call the name of the study committee member to give it a try.
At this moment, Professor Chen's eyes accidentally swept across a seat by the window.
One student didn't bury his head in calculations like the others. He just frowned slightly and looked at the blackboard, tapping his fingers unconsciously on the table a few times, as if he was doing mental calculations.
Then, almost without hesitation, he raised his hand.
The old professor was a little surprised, but he still called his name: "Mr. Lu Qingyang, what are your ideas?"
Lu Qingyang stood up, his tone calm, but his words startling: "Professor, you just set the first boundary condition. If we use Laplace transform combined with Green's function method, it will be simpler than directly separating the variables, and avoid the integral term you wrote on the blackboard that cannot be solved at present."
When he said this, everyone in the room was shocked!
This not only points out another solution, but also directly points out the difficult nodes in the current blackboard derivation path that have not yet been noticed by most people!
The old professor was stunned for a moment, then quickly walked to the blackboard and carefully reviewed the steps he had just written down. After a moment, he slapped his forehead and said, "Yes! I overlooked it! I'm really stuck here! Laplace transform... Green function..."
He immediately picked up the chalk and re-derived the idea according to Lu Qingyang's suggestion. Sure enough, the steps were much clearer and smoother, and the tricky integral term was cleverly bypassed.
Throughout the entire process, Lu Qingyang's presentation was clear and precise, and the mathematical tools he used far exceeded the capabilities of a freshman in the Department of Physics. He even touched upon topics that would be discussed in depth by senior students or graduate students in the Department of Mathematics.
Professor Chen, who was sitting in the back row, suddenly brightened up with a careless look in his eyes, and sat up straight unconsciously.
This is by no means just a student with good physics grades.
This is a genius with a deep understanding and intuition of mathematics.
He saw through the mathematical nature of the problem at a glance and quickly called upon the most appropriate mathematical tools to solve it.
This kind of ability is extremely rare even among mathematics students.
After class, Professor Chen did not leave immediately, but walked straight to Lu Qingyang who was packing his books.
His expression remained serious, but his eyes were full of inquiry and appreciation.
"Lu Qingyang?" Professor Chen asked, his voice much softer than usual.
Lu Qingyang raised his head, recognized the professor who was listening to the lecture, and nodded politely: "Hello, Professor Chen."
Professor Chen got straight to the point: "The ideas you just raised in class are very interesting. Are you familiar with the application of Green's function and integral transform in physics problems? Are you self-taught or..."
"I have read some related books in my spare time." Lu Qingyang's answer was rather vague. He never said that he brought a knowledge system from his previous life.
Professor Chen's eyes were filled with admiration. "You are very talented. Your mathematical thinking is very sharp and profound. It's a bit of a burden to stay in the Physics Department and only do physics problems."
He paused and extended an invitation, "Our mathematics department has a small weekly discussion group for students and young teachers who are genuinely interested in mathematics and have a good foundation. We discuss cutting-edge and in-depth issues. Are you interested in joining?"
This invitation is no small matter!
Professor Chen is a well-known academic authority in the department with extremely high standards. Being invited by him to join this kind of discussion group is in itself a high recognition and a rare opportunity.
The people around who had not yet left the school, especially Zhao Rui, were all stunned and looked at Lu Qingyang with envy.
Lu Qingyang was also slightly stunned, and then quickly weighed the pros and cons.
Participating in mathematics seminars will undoubtedly take up time, but it will also expose him to deeper mathematical knowledge and high-level people, which will be of great benefit to his long-term development.
He made a quick decision, saying humbly and sincerely, "Thank you, Professor Chen, for your invitation. I'm honored and very willing to learn and gain some insights."
Professor Chen smiled, a rare moment on his face. "Okay, I'll have my teaching assistant inform you of the next activity time."
He encouraged Lu Qingyang a few more times and left feeling satisfied.
As soon as Professor Chen left, Zhao Rui came up and excitedly punched Lu Qingyang: "Good fellow, Lu Qingyang, you're really good at hiding your secrets. Even Chen Tiemian from the Mathematics Department is impressed by you. What else can't you do?"
"Mathematics and physics are inseparable. You're pretty good at math."
Zhao Rui chuckled and scratched his head: "It's definitely not as good as you. Why don't you teach me?"
"What's wrong? Are you not worried recently and have time to study?" Lu Qingyang said jokingly.
"I've been studying very hard, okay? Oh, and I have another question for you."
Lu Qingyang thought it was a math problem, but Zhao Rui asked mysteriously, "Do you know what kind of gifts girls like?"
Continue read on readnovelmtl.com
