Just to keep readers in the loop: I have not forsaken you! I just have a job now…
I got hired to program in Clojure, a peculiar member of the Java family and distant relation to the LISP clan.
Nevertheless, I am still writing mathematical notes, and will try to post them when time allows. Do not expect them to be as regular as they used to be!
I am going to finish up vector calculus, beginning with line integrals. After vector calculus, linear algebra will commence!