Hi there! I'm almost sure that somebody has previously make this same question so, if it is like that, i'm sorry.(adsbygoogle = window.adsbygoogle || []).push({});

I've just been introduced to contour integrals, I've tried to look around the internet and some text books, but i can't find out what do they actually are so, if someone could explicitly explain me what is exactly a "contour integral", i'd be very grateful.

PD: By explicitly I mean the formula for doing that integral, there're many examples around the internet, but i haven't found a general expression that explains how to do them...

Anticipated thanks :)

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# How to do a contour integral?

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