1. In China, students of science and engineering (except mathematics, majoring in mathematical analysis) have difficulty in learning mathematics, which is often called "advanced mathematics" in textbooks.
2. Students majoring in literature and history learn a little shallower mathematics, and the textbook is often called "calculus".
Different majors in science and engineering, literature and history have different degrees of depth. It is advanced mathematics that studies variables, but advanced mathematics does not only study variables. As for the courses related to "advanced mathematics", there are usually: linear algebra (advanced algebra for mathematics majors), probability theory and mathematical statistics (some mathematics majors study independently).
Extended data:
The application of calculus in higher mathematics;
The development and application of calculus has influenced almost all fields of modern life. It is closely related to most branches, including medicine, nursing, industrial engineering, enterprise management, actuarial science, computer science, statistics, demography and especially physics. Calculus is often used in economics.
Almost all modern science and technology, such as machinery, civil engineering, architecture, aviation and navigation, use calculus as a basic mathematical tool. Calculus enables mathematics to convert between variables and constants, so that we can deduce another way when we know one way.
Baidu encyclopedia-advanced mathematics