This feature request is with respect to this question How do I write equations on Math.SE?
To be truthful, I had no idea how those equations worked or what LaTeX is until I searched on SE sites and finally stumbled on this wikibooks link about LaTeX
I read in one of the meta questions that if I click on the Math.SE Ask Questions text box, I will see a link on the right side showing Formatting help, which I did find. The snippet didn't help me much and Harvard.edu link went over my head. I wanted something easily understandable. I didn't want to do any thesis on LaTeX, so I continued on...
In the FAQ section, I found this. In my case, this is similar to a person looking at HTML formatting syntax who has no idea about HTML tags. So, this didn't help me much but at least it helped me to learn a new term
I jumped to MathJax link provided in the faq section. I browsed through the site. Everything looked awesome but couldn't find a easy way to create the formulas. I read MathJax's faq, yes I did... I found this awesome link about LaTeX wiki book.
On the wiki book, especially the link LaTeX/Advanced Mathematics helped me to find what I needed to answer OP's question.
Here are my suggestions:
#1: On the Math.SE faq page, add a link to the LaTeX wiki book (
http://en.wikibooks.org/wiki/Latex) so users can easily reference and understand how to create the formulas.
#2: On the Ask question page, when a user clicks inside the text box, How to Format section is displayed on the right side. In that section, add a link at the bottom to LaTeX wiki book (
#3: On the question tool bar, add a button similar to functions. I picked f(x). Clicking which should enclose the selected text within double dollar signs $$ Also, add an Equation section under Advanced Help and provide some examples so users can understand how to formulate equations. Something like this.