The double integral obtained through integration of a function f = (x, y) over a surface S whose vertical projection on the xy-plane in the region of R. The surface integral gives the volume between the surface and the xy-plane and is written
In vector notation (see vector analysis), the surface integral is generally written
which is a scalar, dS being a surface element treated as the vector dx × dy and V being a vector function.
Related category CALCULUS AND ANALYSIS
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