Integral Sign Meaning: Answers & Explanations

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SUMMARY

The integral sign with a circle in the middle represents a line integral around a closed contour, commonly used in complex analysis. This notation is crucial for understanding integrals in the context of vector fields and complex functions. For further clarification, refer to the "complex analysis" section on the Wikipedia page for line integrals.

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What does this sign mean. I know its an integral sign but I don't know what that circle in the middle of it means.
 
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It usually means it's an integral around some closed contour.
 
Can you give me an example? Please
 
shmoe said:
Was this notation not explained wherever you found it?
Nope, thanks for the help and the link.
 

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