If you are in academia, or ever have been, chances are you've seen the output of a system called LaTeX (pronounced la-tek or lay-tek). This typesetting system lets you create professional document with figures, mathematical equations, etc. Many professor's notes are written in this format and then distributed via PDF or HTML. Many professors then take sets of notes like this and publish textbooks. Pretty much every peer reviewed journal out there requires submissions to be formatted in LaTeX. In short, if you want to be in academia, its important to know how to work with it.
I just wanted to share this good tutorial I found:
This is a good reference if you are wondering "how do I insert a _________?", this document will most likely tell you how to get the symbol you desire. Another good place to get this type of information is from Wikipedia:
It turns out that the equations and math typesetting in Wikipedia use a subset of TeX, of which LaTeX is a variation/implementation. So most of these are valid and useful, although you may find that some of the tags/commands on this page don't work as expected.
I hope this was useful to SOMEONE...