Quote:
Originally Posted by BillyMac
How can one look at a finite section of something that is already finite?
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Every section of a finite figure or solid is itself finite, including the section that constitutes the figure. Infinite figures are more difficult to define and depend on the kind of space (Euclidean, Reimannian, etc.).
Quote:
Originally Posted by BillyMac
Our basketball cylinder, as described in basketball interference, has a bottom, the ring, but has no top, theoretically, the center being a ray, so it's not a true cylinder. Is it a right cylinder, with only a "bottom", and no "top"?
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Technically not a right circular cylinder unless both ends are closed.