"...This flight will soon arrive at Shangjing International Airport. For your safety and that of others, please remain seated and do not open the overhead compartments..."
Hearing the airport announcement, Lu Zhou closed the notebook in his hands and capped his pen.
He suddenly noticed someone watching him from beside him. Turning his eyes slightly, he saw a boy of about sixteen or seventeen wearing a baseball cap, staring fixedly at the notebook in his hands.
Raising an eyebrow, Lu Zhou smiled.
"Curious about what I'm writing?"
Apparently not recognizing him, the boy in the cap nodded. After thinking for a moment, he said,
"...Uncle, I think I've seen this formula somewhere before."
Lu Zhou smiled.
This kid... He not only had no tact and spoke unpleasantly, but had also developed the bad habit of showing off.
Seen it? A kid who didn't even recognize him dared claim he had seen this formula? Yeah, right.
Lu Zhou had originally intended to offer him a few pointers, but after thinking it over, he decided against it.
Putting away his notebook, Lu Zhou ignored him. At the flight attendant's reminder, he unfastened his seatbelt and followed Wang Peng, who had already taken down his suitcase for him, down the jet bridge.
The boy in the cap did not seem bothered by being ignored. After racking his brains for a while, he suddenly looked up in realization.
"Ah, that... looks like the Riemann zeta function!"
"No wonder it looked so familiar. I saw it in the final problem of the IMO National Contest..."
But this guy was pretty impressive! He actually knew about the Riemann Function.
Was someone his age still paying attention to the IMO?
Just then, a chubby boy carrying a travel bag walked over from behind and patted him on