C223 Even the Principal Is Here!

Lin Feng, who had a strong aversion to calculus, couldn't relate to the excitement. Even when he solved a particularly simple problem, he didn't feel much thrill.

His interest in calculus was virtually nonexistent. If it weren't for his desire to impress, he wouldn't have bothered spending those minutes on the problem.

However, now that Liu Shiyu was keen on learning how to tackle the problem