How do I write with Latex?

Click on any Latex code, and lo and behold, all shall be revealed!

 

https://www.physicsforums.com/showthread.php?t=8997

As arildno indicated, just click on any typeset string and a popup will appear with the corresponding script.

If you're talking about using LaTeX in more generally than just on these boards (ie. to actually write papers, etc.), take a look at the MikTeX distribution (www.miktex.org)[/URL]. I suggest the Texnic Center IDE if you're using Windows; I've used it for years and have never had any problems.

LaTeX tutorials abound; here are some examples

[url]http://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/[/url]

[url]http://www.tug.org/tutorials/tugindia/[/url]

[url]http://www.andy-roberts.net/misc/latex/index.html[/url]

 

Or, you can also try this not so short guide to LaTeX. Actually, I find it pretty well-arranged. It contains most things you'll probably need from LaTeX. Just one downside, it's pretty big...