SPARK
发表于 2025-3-21 20:02:01
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大漩涡
发表于 2025-3-21 20:59:39
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蹒跚
发表于 2025-3-22 00:47:48
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Compass
发表于 2025-3-22 06:13:25
https://doi.org/10.1007/978-1-4899-2510-7The calculus of variations deals with the problem of determining curves or functions u = u(x) such that some functional.subject to the restriction.takes on an external (stationary) value.
真繁荣
发表于 2025-3-22 11:51:13
Introduction,Nature always tends to minimize its effort in achieving its goal. Whether it is the maximum area of Queen Dido of Carthage, the minimum resistance of Newton or the shortest time of Bernouilli, most physical problems fall, theoretically at least, within the jurisdiction of variational calculus.
NOTCH
发表于 2025-3-22 13:43:35
Calculus of Variations,The calculus of variations deals with the problem of determining curves or functions u = u(x) such that some functional.subject to the restriction.takes on an external (stationary) value.
NOTCH
发表于 2025-3-22 18:51:43
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PAEAN
发表于 2025-3-22 22:50:21
G. F. Hudson,S. Raghavan,D. A. Roylanceite size elements interconnected in a certain fashion. Contrary to the finite difference method which employs the governing differential equation at discrete points (nodal points), the finite element method makes use of the governing integral equation at discrete domains (elements). It also differs
interrogate
发表于 2025-3-23 05:10:07
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变异
发表于 2025-3-23 08:41:37
Spectroscopy at Electrochemical Interfacesd with the finite element method, depending upon the nature of a problem; however, each has its own merit and sometimes neither one alone is sufficient. Preference for one over the other two often becomes evident at the start (during the formulation of the problems). For some problems, for instance,