# How to input using Latex? [duplicate]

I just found this site today and I asked a few questions but I didn't know how to use the latex syntax, so my questions were difficult to understand. Can anyone tell me how to use this Latex program? thanks

• For my purpose, it has up to now been enough to write equations between $...$ or if I want them centered between $$...$$. Most of the usual LaTex commands seem to work between the single or double dollars. Mar 2 '13 at 22:04
• Mar 2 '13 at 23:03

The site (and most other stackexchange sites where such is appropriate) use the exact same implementation of MathJax for Latex markup. Basically, just enclose tex within $ (inline) or $ (set apart equations). Most basic commands work, like \frac and \sin. You can also begin some Latex environments without dollar signs. For example \begin{align}...\end{align} is a valid construct that will have its contents parsed by the tex parser. As for how to use Latex itself, independent of this site, well that is a large enough topic to have its own stackexchange site. For basic stuff to get started, try this other FAQ topic. For site-specific abilities, I can think of no better guide than what they have over at math.SE, found here. Finally, you can always click the Edit button on any post to see how it was written. You are not committed to making any edits. • The is also a minimal set of notes in the our FAQ. Mar 2 '13 at 23:01 • It may be worth noting that questions about MathJax itself are actually not on topic on TeX - LaTeX. Mar 2 '13 at 23:52 • \sin15 or\sin15\frac12$Oct 10 '20 at 18:58 • Can you bring latex in comments with dollar signs?$z=e^{sT}\$ Feb 12 at 0:46