Chapter 21 Talent Tang Lingwu carefully sucked the last sip of milk tea into her mouth, thought for a while holding the empty cup of milk tea, stuffed it into her backpack, and then took Zheng Fa upstairs. "I drank your milk tea, so I'll take care of this matter!" She was almost about to pat her bulging chest. When she reached the fourth floor, she stopped and pointed to a security door and said, "My teacher lives here. Wait for me to go in and talk to him." She knocked on the security door and the person inside opened it. Tang Lingwu gave Zheng Fa a look that indicated she was waiting, then slipped in through the crack in the door and casually left the security door ajar. Zheng Fa stood behind the door waiting, and vague voices came from inside. "Teacher Bai, can I ask you a favor?" Tang Lingwu's voice was very clear. Zheng Fa grinned. This voice is a bit too sweet. "You tell me first."
The voice that came was that of an old man, full of vigilance. Zheng Fa felt inexplicably that it sounded familiar. "I brought you another student!" "Are you in love?" The old man's voice suddenly became higher. "What love? I mean, a classmate of mine has a question for you." "A studious student? Male or female?" The old man obviously did not believe what Tang Lingwu said. "A man...but we're really not in a relationship!" It can be heard that Tang Lingwu tried her best for a cup of milk tea. "Tsk, I know what you young people are thinking. There aren't many young men who are eager to learn. I've seen many lecherous ones! I won't agree." The old man obviously regarded Tang Lingwu as his junior. She has a certain hostility towards every male around her. "Teacher Bai, aren't you a university professor? You answer questions and teach everyone!" The old man said angrily, "I'm retired! Do you understand? I taught students before retirement and I'm still teaching students after retirement. So, isn't my retirement in vain?" This old man obviously has some resentment towards his job. Simply put, lazy. "Then teaching me one is no big deal, so teaching one more won't be a big deal!" Tang Lingwu worked really hard. Zheng Fa, who was outside, felt his whole body numb when he heard the sound. It was hard to imagine that it came from her slightly cold face. "You're different. Your mom gave you too much... No, I mean you're talented in math! Smart!"
"Then you don't even meet him, maybe he has talent too?" "As for mathematical talent, if you see someone and just say he doesn't have it, that's actually a very accurate method." "…Is this really impossible?" "It can't be done!" …… Tang Ling walked out of the house sullenly, with a hint of apology on her face. "I'm sorry, he doesn't want to see you." "It's okay, you've done your best." Listening outside, Zheng Fa could imagine how Tang Lingwu acted coquettishly and flattered in front of the other party, and even his voice could tell how hard she was working. What's more, that cup of milk tea was actually to thank Tang Lingwu for bringing him here. He also heard just now that Tang Lingwu's family spent a lot of money to find this teacher for her. A hundred times of twenty-eight dollars is not enough. He was not so greedy as to just want the teacher to teach him with a cup of milk tea. "How about..." Tang Lingwu turned around and looked at her backpack, which still contained an empty milk tea cup. She said hesitantly, "I'll buy you a cup of milk tea?" "Not really. If you really feel embarrassed, I will ask you if I have any questions in the future. If I can't ask the teacher, asking the students will be the same." "Don't worry, I will teach you!" "Teach me shit! He bought you off with a cup of milk tea? He just wanted to take this opportunity to talk to you more!" An old man's voice came from behind her, sounding very disappointed with her. Zheng Fa watched helplessly as a white curly head poked out from the crack in the door. Looking at this familiar old face, Zheng Fa suddenly realized, why does it sound so familiar? …… Inside the house, the three of them sat on the sofa in the living room, and the atmosphere was a little awkward for a moment. Zheng Fa and Teacher Bai didn't know how to start talking about the curly-haired old man they met in the park before. Tang Lingwu's face was still a little confused. She looked at this, then looked at that, as if she didn't know how these three people suddenly came into the room. "That... young man." "You can just call me Xiao Zheng, or classmate Zheng." When Zheng Fa heard the word "young hero", especially in front of classmates like Tang Lingwu, he felt inexplicably ashamed. "Well, classmate Zheng, stop saying 'you' and 'you'. Just call me Lao Bai or Teacher Bai." The old man continued to ask, "The person she was talking about just now was you?"
"Well, I came across a few pictures and wanted to show them to you, Mr. Bai." "No hurry, no hurry, do you want to take tutoring lessons with me?" "I don't expect to be your student, Mr. Bai, but I can ask you two questions." Zheng Fa recalled the man's firm refusal just now and said embarrassedly. "Don't! I just thought about it. I have been a teacher for my whole life. Now that I have retired, I can't stop wanting to teach and educate people." The expression on Tang Lingwu's face was full of question marks. Isn’t that what you just said? Zheng Fa was also stunned, looking at the old man's sincere face. "Then Mr. Bai, what you mean is..." "What I mean is, since I'm a mathematician, I want to find some students with good mathematical talent to teach. Young man, no, classmate Zheng, your sect should also find some talented people to teach you some secrets?" "Ok?" "Look at me..." Teacher Bai pointed at himself again. "I can tell at a glance that you, Teacher Bai, have extraordinary talents!" Zheng Fa suddenly understood. "I see you are also very good at mathematics!" Tang Lingwu watched from the side, her eyes full of confusion. It seemed like these two men had completed a dirty deal right in front of him. …… Looking at the pictures handed over by Zheng Fa, Teacher Bai frowned slightly and looked a little serious. Compared to his playful look just now, he now looked more like a university professor. He traced a few pictures with his fingers, looked up and asked Zheng Fa: "that's it?" "Ah." "Then I can't tell what it is." Teacher Bai put down a few pieces of paper and said, "Why don't you ask a fortune teller to tell you what it is?" Zheng Fa: “…” "But if you ask me if there are any patterns in these patterns, there are some." "Please tell me." "This, this, and this." Teacher Bai pointed at the three patterns and said uncertainly, "If we look at it from the perspective of mathematical topology, it's actually a pattern."
"what?" Zheng Fa looked at the three pictures in confusion. Looking left and right, I really can't tell what they are. "Taku...what's that?" "This involves a relatively elementary and simple topological concept called homeomorphism..." When Teacher Bai talked about his major, he was very eloquent and gesticulating. After talking for a long time, he stopped and asked Zheng Fa: "Do you understand?" "..." Zheng Fa felt as if a knowledgeable villain was trying to pry open his skull with a chisel, but he seemed to have learned the skill of iron head without any guidance. (End of this chapter)