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| | Integral -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29) |
 | | The ∫ sign represents integration, a and b are the endpoints of the (The difference in pitch between two notes) interval, f(x) is the function we are integrating, and dx is a notation for the variable of integration. |
 | | Historically, dx represented an infinitesimal quantity, and the long s stood for "sum". |
 | | However, modern theories of integration are built from different foundations, and the traditional symbols have become no more than (A technical system of symbols used to represent special things) notation. |
| www.absoluteastronomy.com /encyclopedia/i/in/integral.htm (1854 words) |
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