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Cylinder

In mathematics, a cylinder is a quadric surface, with the following equation in Cartesian coordinates:



This equation is for an elliptic cylinder, a generalization of the ordinary, circular cylinder (a = b). Even more general is the generalized cylinder: the cross-section can be any curve.

The cylinder is a degenerate quadric because at least one of the coordinates (in this case z) does not appear in the equation. By some definitions the cylinder is not considered to be a quadric at all.

In common usage, a cylinder is taken to mean a finite section of a right circular cylinder with its ends closed to form two circular surfaces, as in the figure (right). If the cylinder has a radius r and length (height) h, then its volume is given by


and its surface area is

see also Cone Rectangle Sphere Spherical cap Triangle - Pythagorean theorem newest formulas Acceleration Calculating a weighted average Pregnancy Date Calculator Fill the yellow fields to see the result in the green fields!   A B C 1 height h    cm  2 radius r    cm  3       4 Volume V    cm3  5 Surface area A    cm2  was this helpful ? see also: http://en.wikipedia.org/wiki/Cylinder_%28geometry%29 link: http://formularium.org?go=102 (use this link to publish this page) Export:  Excel-Export Script: <script src="http://formularium.org/js.php?go=102"></script> (use this script to include this spreadsheet onto your own webpageExport)   (source: Cylinder (geometry). (2006, December 13). In Wikipedia, The Free Encyclopedia. Retrieved 14:01, December 21, 2006, from http://en.wikipedia.org/w/index.php?title=Cylinder_%28geometry%29&oldid=94010720) did you know that you can integrate any formula into your own homepage? try it! insert this code into your page: <script src="http://formularium.org/js.php?go=102"></script>