C292 The Relationship Between His Father and His Father

Zhang Wen gritted his teeth. Right now, he had only written a few words. When he thought about the supplementary formula at the back, he felt as if he was going to kill him. Who could remember those terrifying formulas with large amounts of calculus and calculus?

Moreover, within these formulas, the meaning of each variable had to be said!

Zhang Wen would not