This accessible approach features two varieties of proofs: stereometric and planimetric, as well as elementary proofs that employ only the simplest properties of the plane. A short history of geometry precedes a systematic exposition of the principles of non-Euclidean geometry, from fundamental principles to the finer points. 1961 edition.
發表於2025-01-12
Non-Euclidean Geometry 2025 pdf epub mobi 電子書 下載
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Non-Euclidean Geometry 2025 pdf epub mobi 電子書 下載