Memorial
发表于 2025-3-30 11:06:14
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箴言
发表于 2025-3-30 15:19:33
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Tdd526
发表于 2025-3-30 19:05:00
Mario S. Catalani,Giuseppe F. Clerico notion of a vector in an abstract .-dimensional space and, in general, the notion of an extensor (decomposable antisymmetric tensor). Grassmann’s plan was radically innovative; his aim was to found an intrinsic algebraic calculus for (projective, affine, euclidean) geometry, that was alternative to
改革运动
发表于 2025-3-31 00:46:33
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烦扰
发表于 2025-3-31 02:47:15
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