Line Integrals of Scalar Functions (Introduction)

Calculus 3 tutorial video that explains line integrals of scalar functions and line integral visualization.  We show you how to calculate a line integral over curves in 2-dimensional and 3-dimensional space.  This video focuses particularly on line integrals of scalar functions.  We work three examples in this video:  one over a circular path, one over a two-piece curve that requires two integrals, and one on a helix in three dimensions.
0:00  What is a line integral?
4:08  How to calculate line integrals
5:17  Example 1 (2-dimensional)
12:35  Example 2 (2-dimensional)
21:02  Example 3 (3-dimensional)
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