Is there a way to use the (closed) surface integral character, unicode 222F, in LaTeX? (I've tried just entering the character here in the text of this post, so you can see clearly which one I mean, but can't get ∯ to work).

--Kevin C.

Printable View

- Dec 9th 2007, 03:20 PMTwistedOne151Surface Integral
Is there a way to use the (closed) surface integral character, unicode 222F, in LaTeX? (I've tried just entering the character here in the text of this post, so you can see clearly which one I mean, but can't get ∯ to work).

--Kevin C. - Dec 9th 2007, 03:33 PMThePerfectHacker
It is supposed to be \ooint or maybe \oiint but these do not work.

This possibly has to do with the fact that the closed suface integral**is not**used by mathematicians only used by physicists. No I am totally serious, I never seen a math book use a closed surface integral, while physics book (especially on electromagnetism) just use them all the time.

You can just write,

$\displaystyle \oint \oint$ - Dec 9th 2007, 04:14 PMKrizalid
Here some nice symbols:

$\displaystyle \mathop{{\int\!\!\!\!\!\int}\mkern-21mu \bigcirc}$

$\displaystyle \mathop{{\int\!\!\!\!\!\int\!\!\!\!\!\int}\mkern-31.2mu \bigodot}$

$\displaystyle \mathop{\int\mkern-20.8mu \circlearrowleft}$

$\displaystyle \mathop{\int\mkern-20.8mu \circlearrowright}$ - Dec 12th 2007, 05:04 AMshilz222
Krizalid is like the LaTeX god.

- Dec 12th 2007, 10:39 AMThePerfectHacker
- Sep 29th 2009, 02:10 AMbattle-monkThis character is defined in "wasysym" package.
If you need the character you can use the

**wasysym**package; it is defined there as**\oiint**.

Good luck (Happy)