To learn advanced mathematics, we must first understand the inevitable relationship between knowledge and form a knowledge network in our minds. Advanced mathematics involves the knowledge of limit, differential, integral, series, differential equation and so on, and needs to understand, remember, master and skillfully use a large number of theorems and formulas. This requires learners to clear their minds and understand the context of the whole textbook in the process of learning.
The core of this course is calculus and limit. Around this core, we need to understand the concepts of univariate function and multivariate function as the research objects of calculus. Limit theory and method are the foundation of calculus establishment and infinite series learning, so limit theory has become an important basic content. Differential equation is an application of calculus, which is closely related to calculus. From these aspects, function, limit, differential, integral, infinite series and differential equation have their own characteristics, but they are an inseparable whole. To this end, in the process of learning, we should grasp the key points and points of each content, and understand it from point to surface and from part to whole.
It is also difficult for me to start school. I can understand examples, but I can't do problems, especially proof problems. I also tried to understand the meaning of those theorems, but I still couldn't start. But don't be afraid, do more, practice more and see more, and you will certainly master it.