# How to write math with LaTeX? [duplicate]

According to the tutorials, you're supposed to use $to indicate LaTeX math, but the syntax is never mentioned anywhere. Writing $$...math...$$ doesn't do anything, and neither does writing$\frac{1}{2}$. So how do you write math using LaTeX? Note: I do think "The MathJax help link should point to a more specific guide", but that's not what I am asking here, I'm asking wether the format above is correct, and if not, what have I done wrong, because writing LaTeX on Mathematics Stack Exchange didn't work for me. EDIT: After a couple of days LaTeX did eventually work for me, apparently, for some reason, my browser refused to show code at first. If possible, please do close this post. • Which site are you trying to write math on? Are you sure it's one of the sites with the feature enabled? Nov 8 '18 at 19:34 • Im trying to write math on the mathematics site of StackExchange. Im pretty sure it is enabled there.. – user413395 Nov 8 '18 at 19:35 • What do you mean by "indice LaTeX math"? Nov 8 '18 at 19:51 • Yeah, thats the website i looked at, they never tell the direct syntax, only that you have to use$ or , but it still wont work for me. @PeterMortensen
– user413395
Nov 8 '18 at 20:01
• Mathjax only works on certain sites. Meta Stack Exchange isn't one of them. Unfortunately I don't think there are any sandboxes that a new user can use to experiment (Math's Formatting Sandbox is on its meta and thus requires 5 rep). Does MathJax work at all for you (e.g. in existing posts on the Math site)? Nov 8 '18 at 20:36
• @Laurel MathOverflow Meta only requires 1 rep for meta participation; maybe one can set up a sandbox there? Nov 9 '18 at 4:16
• @Sonic They already have one here. Nov 9 '18 at 5:32