faultfinder
发表于 2025-3-25 05:45:26
https://doi.org/10.1007/978-3-0348-5258-6ix with more equations than unknowns (when . > .). Historically, the method of least squares was used by Gauss and Legendre to solve problems in astronomy and geodesy. The method was first published by Legendre in 1805 in a paper on methods for determining the orbits of comets. However, Gauss had al
Annotate
发表于 2025-3-25 09:41:20
Durch Symmetrie die moderne Physik verstehencts. Lie algebras were viewed as the “infinitesimal transformations” associated with the symmetries in the Lie group. For example, the group .(.) of rotations is the group of orientation-preserving isometries of the Euclidean space .. The Lie algebra . (.,ℝ) consisting of real skew symmetric . × . m
观察
发表于 2025-3-25 14:34:20
Durch die USA und Canada im Jahre 1887: We simply want to introduce the concepts needed to understand the notion of Gaussian curvature, mean curvature, principal curvatures, and geodesic lines. Almost all of the material presented in this chapter is based on lectures given by Eugenio Calabi in an upper undergraduate differential geometr
业余爱好者
发表于 2025-3-25 17:16:03
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胆小懦夫
发表于 2025-3-25 23:30:26
Tohru Nakamura,Yukio Hama,Mohamed ZakariaIn affine geometry it is possible to deal with ratios of vectors and barycenters of points, but there is no way to express the notion of length of a line segment or to talk about orthogonality of vectors. A Euclidean structure allows us to deal with . such as orthogonality and length (or distance).
delusion
发表于 2025-3-26 03:25:06
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DNR215
发表于 2025-3-26 07:05:51
Peter Birle,Matias Dewey,Aldo MascareñoIn this section we assume that we are dealing with a real Euclidean space .. Let . → . be any linear map. In general, it may not be possible to diagonalize a linear map ..
新娘
发表于 2025-3-26 10:01:17
https://doi.org/10.1007/978-3-658-28133-5In this chapter we consider parametric curves, and we introduce two important invariants, curvature and torsion (in the case of a 3D curve).
hypnogram
发表于 2025-3-26 13:11:48
Heidrun Schüler-Lubienetzki,Ulf LubienetzkiGiven a vector space . over a field ., a linear map . →. is called a .. The set of all linear forms . → . is a vector space called the . and denoted by .*. We now prove that hyperplanes are precisely the Kernels of nonnull linear forms.
Obscure
发表于 2025-3-26 20:35:28
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