Another great website filled with resources across Analysis, Algebra, Logic & Foundations, Probability & Statistics, Number Theory, Geometry & Topology, Differential Equations, and Discrete Mathmetics.
“Web is filled with great, free mathematics resources. It’s just a matter of finding them.
REAL NOT COMPLEX is a curated list of free math textbooks, lecture notes, videos and more.
Simply choose the topic that interests you and start studying!”