Compared with scientific mathematical analysis, it lacks some in-depth contents of real number theory, continuity, integration and series, such as uniform continuity, uniform convergence, Darboux sum and so on.
Advanced calculus is an American saying. In addition to supplementing the basic theory of mathematical analysis in China, we should also teach Riemann-Stitch integral, Lebesgue measure and Lebesgue integral.
That is to say, it should include the main content of the course of real variable function in China.
What's more, like Apostol's advanced calculus textbook, in addition to the above contents, it also teaches the main contents of complex variable functions.
Compared with complex variable function, real analysis and complex analysis have deeper contents, such as Jong Li's complex analysis book, which talks about Riemann mapping from the beginning. Obviously, you can only understand it if you have studied complex variable functions.
And ordinary complex function books, starting from complex numbers, can be learned with the foundation of calculus.