I've never been active on an SE site where MathJax/LaTex, etc. was used extensively. I never learned to do it. Many on the site seem to be quite adept at it, so in terms of its use on this site, do you render it locally first, and if so, with what program?
I know this is teeter-tottering on the off-topic side, but for people coming to this site with no background in LaTex, etc., it might be helpful to know.
Edit: Without committing too many cardinal sins associated with bad questions:
I'm asking from a practical perspective, as someone who needs to post an equation or two as part of a question or answer. I'm willing to get up to speed on the markup, but I'm looking for the "Microsoft Equation editor"-type solution so I can strive for the status quo of making the equations in the posts look incredibly professional in the meantime while I learn.
Well, I'm picking up a few things here and there, so I had to edit. I'm now getting that the MathJax is the server side of things, so no wonder my initial question was confusing.