condone
发表于 2025-3-28 17:33:42
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类人猿
发表于 2025-3-28 19:42:45
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音乐学者
发表于 2025-3-29 00:06:45
Geometry in the Hellenistic EraAlexandria was founded where the Nile meets the Mediterranean by Alexander the Great, in the year 331 B.C. The city became the capital of Egypt, and rapidly developed into one of the richest and most beautiful cities in the world. That is to say, in the world known to the antique.
声音刺耳
发表于 2025-3-29 06:21:05
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ingenue
发表于 2025-3-29 08:46:08
Axiomatic Projective GeometryThe axiomatic treatment of . has at its starting point three .. We are given one . ?, which we call ., and another set ℒ which we call .. Further, there is given a . between elements from ? and elements from ℒ which is denoted by ., and referred to as .. If . holds for . ∈ ? and . ∈ ℒ, then we say that ..
可转变
发表于 2025-3-29 15:12:23
Making Things PreciseIn Section 8.3 we saw how a model for the projective plane may be constructed by taking the northern hemisphere of a spherical surface, including the equator, and then . diametrically opposite points on the equator.
事先无准备
发表于 2025-3-29 16:54:42
Geometry in the Affine and the Projective PlaneIn this chapter we shall, among other things, prove the classical theorems of .. These theorems are valid in the projective plane ℙ. (ℝ), and we shall give simple algebraic proofs, which fully take advantage of the strength inherent in ..
我没有强迫
发表于 2025-3-29 20:35:46
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arbiter
发表于 2025-3-30 01:48:40
Higher Geometry in the Projective PlaneWe define curves in the . ℙ. (ℙ) analogously to curves in the affine plane ℙ.. The difference is that we can not use ordinary polynomials in two variables, but have to work with . instead. We have seen this in Section 12.8, for conics.
万花筒
发表于 2025-3-30 05:17:42
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