Method of Shells
Let R be a plane region bounded above by a continuous curve y=f(x), below by the x-axis, and on the left and right by x=a and x=b, then the volume of the solid of revolution obtained by rotating R about the y-axis is given by
See also
Method of Disks, Method of Washers, Solid of Revolution, VolumeExplore with Wolfram|Alpha
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References
Anton, H. "Volumes by Slicing; Disks and Washers." §6.2 in Calculus with Analytic Geometry, 2nd ed. New York: Wiley, pp. 359-367, 1984.Referenced on Wolfram|Alpha
Method of ShellsCite this as:
Weisstein, Eric W. "Method of Shells." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/MethodofShells.html