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Math Help - Surface Integral

  1. #1
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    Surface 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).


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  2. #2
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    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,
    \oint \oint
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  3. #3
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    Here some nice symbols:

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

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

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

    \mathop{\int\mkern-20.8mu \circlearrowright}
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  4. #4
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    Krizalid is like the LaTeX god.
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  5. #5
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    Quote Originally Posted by shilz222 View Post
    Krizalid is like the LaTeX god.
    Krizalid is the LaTeX god, but I am the Math god.

    This is Mine 81th Post!!!
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  6. #6
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    This 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
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