\bigcup

To answer your (implicit) question, it is the symbol for union.

How do I typeset the || symbol in n || p?

In LaTeX, how does one write the symbol for "section"?

In many math papers, like in the one I attached to [URL="http://mersenneforum.org/showpost.php?p=191398&postcount=32"]this post[/URL] a symbol (I dunno the name of it) is used in place of section. Thus, to refer to Section 6, I would instead use "symbol" 6.

To typeset the norm symbol is \|

To typeset the section symbol is \s (possibly capital S, I don't have a working LaTeX environment on this computer to check that one.)

[quote=paleseptember;191882]To typeset the norm symbol is \|
[/quote]
The symbol I was referring to was not the norm symbol, but it has to do with divisibility.
[quote=paleseptember;191882]
To typeset the section symbol is \s (possibly capital S, I don't have a working LaTeX environment on this computer to check that one.)[/quote]
\S works for me, thanks! :smile:

flouran,

You are not doing your homework. These last few questions you asked are all answered in that .pdf file I linked to earlier.

In table 3 is \S.

If you search for \mid (which you already know gives one vertical line) you get to table 62, in which you find \parallel for two vertical lines.

P.S. If you get the right editor (I like WinEDT) then it has tables of the most common symbols built in.

[quote=Zeta-Flux;191886]
You are not doing your homework. These last few questions you asked are all answered in that .pdf file I linked to earlier.
[/quote]
My bad :blush: I should have looked more closely at the pdf. Sorry.

Your humility is sufficient to quench my wrath. :pals:

[quote=flouran;191883]The symbol I was referring to was not the norm symbol, but it has to do with divisibility.
[/quote]

Sorry, I looked in the paper you'd linked earlier, but couldn't find the usage.

[quote=Zeta-Flux;191886]
P.S. If you get the right editor (I like WinEDT) then it has tables of the most common symbols built in.[/quote]

WinEdt is very good, tis highly recommended from me too. However, I used TexShop on the Mac for a while, which was quite good. TexnicCenter (sp?) is a good free alternative.

[quote=paleseptember;191892]Sorry, I looked in the paper you'd linked earlier, but couldn't find the usage.
[/quote]
No worries, my friend.

[quote=paleseptember;191892]
WinEdt is very good, tis highly recommended from me too. However, I used TexShop on the Mac for a while, which was quite good. TexnicCenter (sp?) is a good free alternative.[/quote]
One of my friends started using TeXShop a few weeks ago (he has just started out with LaTeX), and I often (jokingly) ridicule him for using TeXShop rather than vi. :smile: