That's what you said. Hehe, what you said is the most basic mathematical knowledge, and solving these problems in C language is also a relatively simple problem in C language. After learning C language, you basically use these simple examples to practice your hands, but after you have a certain foundation of C language, you basically need to use C language to solve some examples, such as some management systems and some small games, which have nothing to do with mathematics. In the later stage, you will be involved in other knowledge. Such as data structure, algorithm, etc. It's all difficult, but it's not necessary to know so much when you're just learning, and it's not necessary to know so much when you take the exam for Grade Two or Three. The real language related to mathematics is matlab, which involves many difficult mathematical knowledge, such as numerical analysis, matrix theory, probability theory and so on.