aggression
发表于 2025-3-21 18:02:22
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Interferons
发表于 2025-3-21 22:30:47
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Clumsy
发表于 2025-3-22 03:36:24
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hedonic
发表于 2025-3-22 08:09:34
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阐明
发表于 2025-3-22 09:17:18
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CALL
发表于 2025-3-22 14:36:43
Hyperbolic geometry,In Chapter 3 we saw that elliptic geometry is a non-Euclidean geometry, for any pair of elliptic lines intersect; that is, parallel lines do not exist in that geometry (denial .1 of Postulate V).
aplomb
发表于 2025-3-22 19:47:28
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Ambulatory
发表于 2025-3-22 22:47:09
Ana Irene Ramírez Galarza,José SeadePresents all the classical geometries in a unified way, with many illustrations, thus making their understanding easier.Though the proofs and arguments are in general absolutely rigorous, emphasis is
Jejune
发表于 2025-3-23 03:04:54
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敲竹杠
发表于 2025-3-23 06:18:24
Affine geometry, that constitutes a natural bridge between Euclidean geometry and projective geometry, both from the historic and the formal viewpoints. The reason this is possible is that the group of affine transformations is larger than the Euclidean group and is contained in the group of projective transformations.