If you just want to learn calculus, you must first understand the most basic things, such as functions, equations, limits and so on. If you know all this, then you have the foundation and conditions to learn calculus.
It is suggested to learn simple equations first, at least be able to solve equations with more than two variables and equations with more than two degrees, and master the basic methods of solving equations.
Secondly, we should master the concept of function, which is an important concept in advanced mathematics. We should not only know what a function is, but also master the properties and images of some commonly used functions, including the following functions: linear function, quadratic function, trigonometric function, power function, exponential function, inverse trigonometric function and logarithmic function.
Secondly, we should understand some commonly used concepts, and then we can go back to study calculus when we encounter something we don't understand.
Then there is the most important restriction. The foundation of calculus is limited. To master the concept and nature of limit, the most important thing is to master the mathematical thinking method of limit. This is the most important difference between advanced mathematics and elementary mathematics.
Ask me if you don't understand.
S B upstairs can understand, I said that advanced mathematics has nothing to do with elementary mathematics? I said it didn't matter much. Calculus is derivative, limit, differential and integral. The main question is how to use some basic formulas of calculus, which is related to what geometry and ellipse are learned in middle school? The landlord said that as long as you learn calculus, you can spray it when you understand it.