AMPLE
发表于 2025-3-28 16:29:23
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Common-Migraine
发表于 2025-3-28 21:51:38
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胶状
发表于 2025-3-29 02:49:32
. ablesen, den zwei im Bilde dargestellte Geraden a und b einschließen? Und umgekehrt: Wie sind in ein Bild zwei Geraden einzuzeichnen, deren Winkel . gegeben ist? Die Geraden sollen in einer Ebene ϵ liegen, deren . e.. sei . Nach dem Winkelsatz bilden die Fluchtstrahlen von a und b, die ja d
熔岩
发表于 2025-3-29 05:53:26
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HEAVY
发表于 2025-3-29 10:08:01
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不如屎壳郎
发表于 2025-3-29 13:54:32
Meinolf Lombino,Olaf Fischerugh use of real numbers) rather than Hilbert‘s synthetic approach to the subject. Throughout the text we illustrate the various axioms, definitions, and theorems with models ranging from the familiar Cartesian plane to the Poincare upper half plane, the Taxicab plane, and the Moulton plane. We hope
CALL
发表于 2025-3-29 19:15:47
g Geometry, so that others can try our approach. The publishers and we thought it would be appropriate to issue the book first in a preliml. nary edition, on which we would welcome comments, especially from students and teachers of the high school geometry course. Such comments can bear on any aspec
FILLY
发表于 2025-3-29 23:32:10
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implore
发表于 2025-3-30 02:03:16
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阻挡
发表于 2025-3-30 05:51:44
Meinolf Lombino,Olaf Fischern 1984. Sincethen the geometry of surfaces has continued to be enriched with ideas and results. This has required changes and additions, but has not influenced the character of the article, the design ofwhich originated with Shefel‘. Without knowing to what extent Shefel‘ would have approved the cha