The basic level of mathematics in the United States has basically ended in the second grade in China, and the highest level is a little derivative. That kind of derivative can be learned by primary school students, and it is a set of pure formulas without thinking.

Mathematics in American universities is completely separated, that is, it is learned in detail but not widely, unlike China, which is so general and learns everything.

For example, if you are a finance major, you should only study probability statistics, permutation and combination, and apply them to charts and practical software. Other functions, the process of analytic geometry are all ignored.

If you are an engineering architecture major, you will go a little deeper and use calculus.

Every freshman in the United States has a course on Pythagorean Theorem.