厌食症
发表于 2025-3-25 03:39:29
hing: the notation. Lest one think this rather triv ial, recall that the ultimate abandonment, early in the 19th century, of Newton‘s method of fluxions in favor of the Leibnizian calcu978-3-642-07467-7978-3-662-04589-3
Negotiate
发表于 2025-3-25 07:32:41
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哭得清醒了
发表于 2025-3-25 14:18:21
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aplomb
发表于 2025-3-25 17:43:43
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有其法作用
发表于 2025-3-25 19:58:35
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委托
发表于 2025-3-26 02:14:53
Continuous , Degree of FreedomThe completeness of the . or . vectors is expressed, for example, by the summation
Fluctuate
发表于 2025-3-26 04:54:35
Quantum Action PrincipleConsider infinitesimal displacements of the time origin, . and the implied unitary transformation, . where ., the Hamiltonian operator, depends upon a set of variables for the system, ..(.), and possibly on . itself. When we shift the origin, the variables are redefined, . or . where . so that
Optimum
发表于 2025-3-26 11:18:56
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加入
发表于 2025-3-26 12:45:17
Hydrogenic AtomsNow we are going to do a nice little trick: turn one kind of dynamical system into another one. Begin with the differential equation (7.4.60) that determines the energy eigenstates of the two-dimensional isotropic oscillator ., and put ..
muscle-fibers
发表于 2025-3-26 18:35:21
Identical ParticlesWe now begin the construction of an algebraic theory of identical particles known (inaccurately) as second quantization. A brief reference, in the context of angular momentum, already appears on page 158.