发誓放弃
发表于 2025-3-26 22:59:16
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nutrition
发表于 2025-3-27 01:53:21
Living with Wildlife in Zimbabweigure 15-6). When . = 0, ϕ. = ϕ is a parametrized .-surface in ℝ... For . ≠ 0. however, ϕ. may fail to be a parametrized .-surface because there may be points . ∈ . at which ϕ. fails to be regular. At each such point there will be a direction . such that .. If α is a parametrized curve in . with .,
放逐某人
发表于 2025-3-27 06:57:33
We begin by using a technique of the calculus of variations analogous to the one we used in Chapter 18 to study minimal surfaces. Now, however, we shall vary parametrized curves rather than parametrized surfaces
Legend
发表于 2025-3-27 10:26:25
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Mitigate
发表于 2025-3-27 15:04:50
Elementary Topics in Differential Geometry978-1-4612-6153-7Series ISSN 0172-6056 Series E-ISSN 2197-5604
丛林
发表于 2025-3-27 18:40:48
,Treatment 1—Therapeutic Materials,r transformation on the 1-dimensional spacc .. Sincc every linear transformation from a 1-dimensional space to itself is multiplication by a real number, there exists, for each . ∈ ., a real number .(p) such that .. K(.) is called the . of . at ..
偶然
发表于 2025-3-28 01:01:00
Living with Nature, Cherishing Languageeasures the turning of the normal as one moves in S through . with various velocities .. Thus . measures the way . curves in ℝ.. at .. For . = 1, we have seen that . is just multiplication by a number .(p) the curvature of . at .. We shall now analyze . when . > 1.
运动性
发表于 2025-3-28 06:01:03
https://doi.org/10.1007/978-1-4615-8744-6ee Figure 13.1). An oriented .-surface . is . at . ∈ . if there exists an open set . ⊂ ℝ.. containing . such that . ∩ . is contained either in . or in .. Thus a convex .-surface is necessarily convex at each of its points, but an .-surface convex at each point need not be a convex .-surface (see Figure 13.2).
牛马之尿
发表于 2025-3-28 10:18:39
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严重伤害
发表于 2025-3-28 13:47:22
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