Thread: Can someone help me to code?

I am trying to figure out how to write a set. This should be simple! I've got
S = {1,2,3,4}
and it won't work?

PS Oops. I guess it did. Sorry.

[tex]S=\{1,2,3,4\}[/tex] gives
Click on the “go advanced” tab. On the toolbar you will see clicking on that give the LaTeX wraps, [tex] [/tex]. The code goes between them.