Is there any repository of online videos on using and mastering TEX / LATEX, and similar other tools for free download?
I'm relatively new to actual LaTeX scripting, much of my experience comes from using MathJax over at math.stackexchange.com and I'm kinda self-taught, just picking things up as I need them. However, ...
Like a tree of math formula's ever getting more complicated as I build on existing knowledge. I don't know if that is the best way to learn math but it would at least be fun building it :-)