[wdkrnls]

TeXmacs can execute code too. Honestly, if it had 1/10 the community of Emacs, I would be using it for everything from running my window manager to driving my statistical simulations. It's already what Stallman keeps asking Emacs to become.

[kayvulpe]

TeXmacs and mathacademy are the reasons I've successfully rebooted my mathematical education after so long. Both are great products.