The old man still had anger on his face, but he had clearly calmed down inside. He pulled out a bank card to pay the consultation fee.
Song He firmly refused. If the chance to publicly auction off a one-on-one lesson from the Mathematics Emperor were put up for sale, it would be worth far more than this consultation fee. As both a disciple taught over meals and an online-course disciple, he still had to pay these tuition fees.
But Dewitt was just as stubborn and firmly insisted that Tang Jiang accept it.
The old man and the young man argued and declined for a long while. In the end, Song He gave in, accepted the bank card, and planned to prepare another gift for Dewitt later. If the stubborn old man still refused to accept it, he would put the money toward establishing a small scholarship in the class.
"Come on, how did things go today?" Dewitt asked.
Song He pulled out the notes he had prepared and handed them over.
Dewitt read them quickly. He was just about to let out a relaxed laugh and reject everything, as he had the previous two days.
But he stopped as soon as he opened his mouth. He had suddenly noticed something and stared intently at the end of the notes, deep in thought.
"Your last idea... I hadn't thought of it. It seems there may be some hope." Dewitt said seriously. "I'll work through it right now."
After asking a server for paper and a pen, he leaned over the table and began drafting. Song He leaned over beside him to help, while Deng Puhe focused wholeheartedly on mooching a meal, eating noisily nearby.
"After anchoring at X0, there are two inner holes, p+ and p-, with a negative approach