General things

I learned a lot about emacs from the following sites

My own init.el

See My emacs repo.

I only use org-mode, latex, python, and git (and sometimes plain txt). I think I optimized my init.el for this, and I stripped all the rest.

I decided to not tinker with the standard emacs key bindings; over the years I have noticed that they are mostly very well thought-out, and, perhaps more importantly, they don't change.

Optimization and Constraint Programming

A search on python constraint programming yields also many useful links to tutorials and documentaion.


  • Why airplanes fly There are many `explanations' of why planes fly, and nearly all of them are false, or worse, not even wrong. A number of those are debunked on this site.