门窗的侧柱
发表于 2025-3-30 11:43:18
http://reply.papertrans.cn/29/2841/284081/284081_51.png
Expressly
发表于 2025-3-30 13:06:50
Coordinate Transformations,... and . contained within q, and since any square matrix can be written as the sum of symmetric and skew-symmetric parts, the possibility of expression of these equations in the form of Eq. (64) is guaranteed by the symmetric character of the coefficients of . in the constituent equations.
Fsh238
发表于 2025-3-30 18:02:18
http://reply.papertrans.cn/29/2841/284081/284081_53.png
六个才偏离
发表于 2025-3-30 22:52:32
Mathematical modeling of spacecraft,lysts will differ in their preference for various ways of formulating equations, one man choosing Lagrange’s equations, a second preferring Hamilton’s principle, and a third relying upon a Newton-Euler formulation, these differences are much less fundamental than the initial choice of a mathematical model of the vehicle.