Integral notation with short horizontal line

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The discussion centers on the meaning of a short horizontal line above an integral sign, which indicates the average value of a function over a domain, represented as \frac{1}{|\Omega|}\int_\Omega. Participants note that to typeset this notation in LaTeX, the esint package is required, as the AMS math package does not include the necessary symbols. A reference to the Comprehensive LaTeX Symbol List is provided for further symbol guidance. The conversation emphasizes the importance of using the correct packages for proper formatting in LaTeX. Understanding these details is crucial for accurate mathematical representation in documents.
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What does it mean when an integral sign has a short horizontal line drawn on it?
 
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Is the mean, i.e.

\frac{1}{|\Omega|}\int_\Omega

where |\Omega| is the measure of \Omega.
 
Ok. Anyone knowing how to type it with latex? I didn't see it in lshort.pdf (The not so short introduction to LaTex)
 
Ok. Nice.
 
AiRAVATA said:
\fint

But you need to use AMS math package.

A great reference on LaTeX symbols is in the Comprehensive latex symbol list.

fint is not in the AMS math package. You must use esint package.
 

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