But the foundation of analog circuit is circuit analysis. If you want to learn analog circuits well, you must first look at circuit analysis.

Circuit analysis and analog circuits include L-C oscillation circuit, circuit amplification, circuit feedback, signal analysis and other important contents, which involve a lot of differential and integral operations. The solution of differential equations requires high mathematics!

I don't know what your major is, but in general engineering, you have to learn advanced mathematics, linear algebra and probability theory, which are the foundation and must be tested in the postgraduate entrance examination.

There are mathematical equations, complex variables, etc. Advanced mathematics is a very basic and important subject!

Come on!