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Differential equations - definition of Differential equations in Encyclopedia (2239 words) |
 | In mathematics, a differential equation is an equation that describes a prescribed relationship between a set of unknowns which are to be regarded as an unknown function and its (ordinary or partial) derivatives. |
| Ordinary differential equations are to be distinguished from partial differential equations where y is a function of several variables, and the differential equation involves partial derivatives. |
| Differential equations are used to construct mathematical models of physical phenomena such as fluid dynamics or celestial mechanics. |
| Differential analyser - Wikipedia, the free encyclopedia (133 words) |
| It is designed to solve differential equations by integration, using wheel-and-disc mechanisms to perform the integration. |
| The differential analyser was used in the development of the bouncing bomb, used to attack German hydroelectric dams during World War II. |
| Differential analysers have also been used in the calculation of soil erosion by river control authorities. |
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