Line integral: how can it be > 0?

mercredi 2 avril 2014

Using my understanding of calculus, I don't understand why line integrals in 3-d space

can give a result > 0. You are following a line and integrating under that line. The line

has some length. But according to my understanding of calculus, it does not have a width.

What is this arbitrary width, and where does it come from?



Thank you





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