IWOL Chapter 366: You Should Leave (Fu Zhe x Cerberus)
“Assuming that the function y=f(x) is defined in the interval, if the increment of the function △y=f(x0+△x)-f(x0) can be expressed as △y=A△x+o(△x), then among them, A is a constant that has nothing to do with △x, and o(△x) is an…
