Arthritis
发表于 2025-3-23 11:16:41
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金盘是高原
发表于 2025-3-23 16:42:27
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stroke
发表于 2025-3-23 19:27:28
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HARD
发表于 2025-3-24 01:37:15
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languor
发表于 2025-3-24 04:31:16
https://doi.org/10.1007/978-3-322-80274-3Gaussian curvature; commonplace curved objects; curvature; euklidische Geometrie; experiments; geometry; m
aneurysm
发表于 2025-3-24 06:47:58
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blithe
发表于 2025-3-24 13:08:05
https://doi.org/10.1007/978-3-662-28437-7ral curve. In other words, the Greek mathematicians were unable to put into mathematical language an idea that every ancient rope-stretcher and tailor must have known! To understand the nature of the difficulty, let us start with an experiment.
abracadabra
发表于 2025-3-24 17:50:22
https://doi.org/10.1007/978-3-663-07941-5inly, the curvature of a straight line should be considered zero. Perhaps then, we can regard a curve as a deviation from a straight line? Let us explore how this idea can be given quantitative meaning.
BAIT
发表于 2025-3-24 19:20:56
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表两个
发表于 2025-3-25 02:30:09
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