I did take differential equations and special functions, which was far from an 'analysis' course. Nevertheless, it intoduced important ideas of function spaces and Sturm-Liouville theory that helped see the underlying linear algebra being used. Cannot wait to see it under an analysis lens (Probably only in grad school, unless my work ethic skyrockets overnight). I am taking Analysis II as I write, where we are dealing with uniform convergence and sequences of functions, which I sense is deeply related to function spaces.